Syed Ahmed Zaki

Posted on August 15, 2021 | Enter your password to view comments.

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New German Word List

Posted on July 25, 2021 | Leave a comment

bescheid
anspruch
nun
einfach unglaublich
vorschlag
genauso
verandert
vorgestellt
szenario
bemuhte
schaffen
verwendet
durchdacht
personlichkeit
abhängt
niemals
bedingung
mühe
boden
wahrheit
uberraschung
erreicht
vorstellen
berührenden song
mög Gott deine Großeltern segnen und beschützen
schön das es noch so eine Enkelin für solche tollen Großeltern gibt!
mädel
schätzen
Liebesbeweis

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Posted in German Learning, Germany

Protected: Formal Specifications and Verifications(FSV)

Posted on July 21, 2021 | Enter your password to view comments.

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Posted in Masters of Science

A2.2

Posted on July 1, 2021 | Leave a comment

Aussagen scheint bewölkt gemein aufnäher wieso
Bergen ist es manchmal neblig
Unterricht am 2.07.2021
zuschauer
retten
erfinden
nebenwirkungen
weiterfuehrt
bewölkt
Bergen
neblig
der Nebel
Boah!
heiter
die sonne scheint
es gibt regen
wind weht
wtterberichte
Reihenfolge
fehlenden
Zur Erinnerung
1. Damals und jetzt
Was passt? Markieren Sie!
andere draußen
dabei
Bühne
praxis
geübt
Ich briet Spiegeleier
Der Hund fisstflüstern
Mutze
Der Mann trug ein Mutze
Schreien
Der Polizist
Sportarten
Wettkampfen
berühmteste
berühmteste
erfahren
verweilen
Klimaanlage
lasse
Ich lasse mich am Montag impfen
gering
die Grippe.
Eine Klammer
erganzung
beißen
häufig
Es wäre nett, wenn Sie mir einen Kaffee mitbringen.
Max hat immer ein Online-Übersetzungsprogramm verwendet
BefehlsformBefehl
verärgert
als grob unhöflich
dich höflich ausdrücken willst

Statements seems cloudy mean patch why
Mountains are foggy sometimes
Lessons on 07/02/2021
spectator
rescue
to invent
side effects
continues
cloudy
Mountains
foggy
the fog
Wow!
bright
the sun is shining
there is rain
wind blows
weather reports
sequence
missing
In memory of
1. Then and now
What’s up? Mark your choiche!
others outside
with it
stage
practice
practiced
I fried eggs
The dog is eatingwhisper
Cap
The man was wearing a cap
Scream
The policeman
sports
Competitions
most famous
most famous
Experienced
linger
air conditioning
let
I’ll get vaccinated on Monday
low
the flu.
A bracket
complement
bite
often
It would be nice if you could bring me some coffee.
Max has always used an online translation program
Imperativecommand
upset
as grossly rude
express yourself politely

erzähl
aufgeregt
die Augen zudrücken
ich lasse mich mich impfen (heute)
ich ließ mich impfen (gestern)
ich wurde gestern geimpft

die Spritze/
DACH lander
ratschlage
ernaahrung
befehl
ausreichend
beweg dich
Geh spazieren
Geh raus
Beweg dich
obwohl
weil
endlich

wecker
verschlafen
konsequenze
aufgeladen

sauer
wiederholen
wettkampf
die Grippe
zurzeit aktuelles
unterschied
behandeln
Normalerweise termin ist immer verfügbar im meine Heimatland wenn es ist nicht so beliebte arzt

Wenn man hat ein notfall oder brauchen ein Krankenbescheinigung für die arbeitsplatz es ist sehr schwierig wenn ohne termin ist.
erfahrung
vorbereiten
protokoll

similar
paragraph
mandatory
outpatient service
caring

ähnlich
Absatz
verpflichtend
ambulanter Dienst
Pflege

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Posted in German Learning, Germany, Grammar

Protected: A2.2 Revise: Online Class Fra U

Posted on May 6, 2021 | Enter your password to view comments.

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Posted in German Learning

Protected: Human Computer Interaction/HMI

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Protected: Data Mining Summer 2021, Frankfurt U

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Protected: Advanced IT security

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Protected: Advanced Testing:

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Protected: Wiki Diary: Learning from Data

Posted on April 16, 2021 | Enter your password to view comments.

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Posted in Learning from Data LFD, Masters of Science

Python Course Zero to Mastery Started at Udemy

Posted on April 14, 2021 | Leave a comment

Python usually uses an interpreter. The compiler are a little bit different.

Interpret translates line by line.

Compiler takes all lines to machine code.

What is programming language? We give some instruction to translator. They tell the machine what to do. Translator can be interpreter or compiler.

Interpreter:

Compiler:

Python basics till numbers:

<span style="font-size: 14pt; font-family: arial, helvetica, sans-serif;">name=input('What is your name?')
print('hellllooooo '+name)


age=input("What is your age?")
print('Cool you are '+age)

#fundamentals data-type
int
float
bool
str
list
tuple
set
dict
print(2+4)
print(2-4)
print(2*4)

#classes custom types



#specialized data types
None</span>

<span style="font-size: 14pt; font-family: arial, helvetica, sans-serif;">name=input('What is your name?')

print('hellllooooo '+name)

age=input("What is your age?")

print('Cool you are '+age)

#fundamentals data-type

int

float

bool

str

list

tuple

set

dict

print(2+4)

print(2-4)

print(2*4)

#classes custom types

#specialized data types

None</span>

Double Slash in Python:

import math
result=10/3
print(result)


print(math.floor(result))


result=10//3
print(result)

import math

result=10/3

print(result)

print(math.floor(result))

result=10//3

print(result)

/ -> float division
//-> integer division

don’t memorize which available on the documentation

String type conversation.

a=str(100)
b=int(a)
c=type(b)
print(c)

a=str(100)

b=int(a)

c=type(b)

print(c)

Formatted String:

#formatted strings
name='Johnny'
age=55
print(f'HI {name}. you are {age} years old')

print('HI {}: yOU ARE {} years old'.format(name,age))

#formatted strings

name='Johnny'

age=55

print(f'HI {name}. you are {age} years old')

print('HI {}: yOU ARE {} years old'.format(name,age))

String Index

#string indexes
selfish='me te ke'
       #0123456789

#[start:stop:stepover]
print(selfish[::-3])

#string indexes

selfish='me te ke'

#0123456789

#[start:stop:stepover]

print(selfish[::-3])

selfish[start:stop:stepover]

Immutabilty

Built in functions
Booleans

#booleans
name='Andrei'
is_cool=False
is_cool=True
print(bool('False'))

#booleans

name='Andrei'

is_cool=False

is_cool=True

print(bool('False'))

Software to find your current age with python:

birth_year = input('what year were you born?')
birth_year=int(birth_year)
print(type(birth_year))
current_year=2021
age=abs(birth_year-current_year)
print(age)

birth_year = input('what year were you born?')

birth_year=int(birth_year)

print(type(birth_year))

current_year=2021

age=abs(birth_year-current_year)

print(age)

birth_year = input('what year were you born?')
int(birth_year)
current_year=2021
age=abs(int(birth_year)-current_year)
print(age)

birth_year = input('what year were you born?')

int(birth_year)

current_year=2021

age=abs(int(birth_year)-current_year)

print(age)

#1 “old style” string formatting(% operator)

#2 it is known python f string/string interpolation started from python 3.6 
name = 'bob'
print(f'hello, {name}!')

a=5
b=10
print(f'Five plus ten is {a+b}, it is not {2*(a+b)}')

#2 it is known python f string/string interpolation started from python 3.6

name = 'bob'

print(f'hello, {name}!')

a=5

b=10

print(f'Five plus ten is {a+b}, it is not {2*(a+b)}')

Source: https://realpython.com/python-string-formatting/

Template string ta pore kokhono hoyto dekhbo, ei ar ki

password length printing code from the course:

username=input('what is your username?')
password=input('what is your password?')

password_length=len(password)
hidden_password='*'*password_length
print(f'{username}, your password {hidden_password}, is, {password_length} {len(password)} letters long')

username=input('what is your username?')

password=input('what is your password?')

password_length=len(password)

hidden_password='*'*password_length

print(f'{username}, your password {hidden_password}, is, {password_length} {len(password)} letters long')

#list
li=[1,2,3,4,5]
li2=['a','b','c']
li3=[1,2,'a', True]

amazon_cart=['notebooks','sunglass']
print(amazon_cart[1])

#list

li=[1,2,3,4,5]

li2=['a','b','c']

li3=[1,2,'a', True]

amazon_cart=['notebooks','sunglass']

print(amazon_cart[1])

List

#List slicing
amazon_cart = [
'notebooks',
'sunglasses',
'toys',
'grapes'
]
#greet = 'hello'
#greet[0] = 'z' #it is immuatble but list is mutable 


amazon_cart[0]='laptop'
new_cart=amazon_cart[:] #it is copyinh amazon_cart now
new_cart[0]='gum'
print(new_cart)
print(amazon_cart)

#List slicing

amazon_cart = [

'notebooks',

'sunglasses',

'toys',

'grapes'

]

#greet = 'hello'

#greet[0] = 'z' #it is immuatble but list is mutable

amazon_cart[0]='laptop'

new_cart=amazon_cart[:] #it is copyinh amazon_cart now

new_cart[0]='gum'

print(new_cart)

print(amazon_cart)

Matrix

#matrix
matrix=[
  [1,2,3],
  [2,4,6],
  [7,8,9]
  ]

matrix=[
  [1,0,1],
  [0,1,0],
  [1,0,1]
]


print(matrix[0][1])

#matrix

matrix=[

[1,2,3],

[2,4,6],

[7,8,9]

]

matrix=[

[1,0,1],

[0,1,0],

[1,0,1]

]

print(matrix[0][1])

list operations:

basket=[1,2,3,4,5]
basket.append(100)
print(basket)

new_list=basket.append(102)
print(new_list)
print(basket)

new_list=basket.insert(2,100)
print(basket)

new_list=basket.extend([39])
print(basket)

#removing
basket.pop()
basket.pop()
basket.remove(5)
print(basket)
#removing
new_list=basket.pop(4)
print(new_list)
new_list=basket.clear()
print(basket)

basket=[1,2,3,4,5]

basket.append(100)

print(basket)

new_list=basket.append(102)

print(new_list)

print(basket)

new_list=basket.insert(2,100)

print(basket)

new_list=basket.extend([39])

print(basket)

#removing

basket.pop()

basket.remove(5)

print(basket)

#removing

new_list=basket.pop(4)

print(new_list)

new_list=basket.clear()

print(basket)

we can see the function from online documentation from the official site or other sites

basket=[1,2,3,4,5]
print(basket.index(2))

basket=['a','x','b','c','d','e','d']

print('d' in basket)
print('i' in 'hi my name is Ian')
print(basket.count('d'))


#basket.sort() #it is method here
#but we can also do with method


#new_basket=basket.copy()
#new_basket.sort()
#print(sorted(basket))
basket.reverse()
print(basket)

basket=[1,2,3,4,5]

print(basket.index(2))

basket=['a','x','b','c','d','e','d']

print('d' in basket)

print('i' in 'hi my name is Ian')

print(basket.count('d'))

#basket.sort() #it is method here

#but we can also do with method

#new_basket=basket.copy()

#new_basket.sort()

#print(sorted(basket))

basket.reverse()

print(basket)

basket=['a','x','b','c','d','e','d']
basket.sort()
basket.reverse()
print(basket[::-1]) ##for reversing
print(basket[:])#copy
print(basket)

basket=['a','x','b','c','d','e','d']

basket.sort()

basket.reverse()

print(basket[::-1]) ##for reversing

print(basket[:])#copy

print(basket)

new_sentence=' '.join(['hi', 'my', 'name', 'is', 'JOJO'])
print(new_sentence)

1 2	new_sentence=' '.join(['hi', 'my', 'name', 'is', 'JOJO']) print(new_sentence)

new_sentence=' '.join(['hi', 'my', 'name', 'is', 'JOJO'])
print(new_sentence)

1 2	new_sentence=' '.join(['hi', 'my', 'name', 'is', 'JOJO']) print(new_sentence)

#list unpaking
a,b,c, *other, d=[1,2,3,4,5,6,7,8,9]

print(a)
print(b)
print(c)
print(other)
print(d)

#list unpaking

a,b,c, *other, d=[1,2,3,4,5,6,7,8,9]

print(a)

print(b)

print(c)

print(other)

print(d)

weapons=None
print(weapons)

1 2	weapons=None print(weapons)

#Dictionary both data structure and data type
dictionary={
    'a':[1,2,3],
    'b':'hello',
    'x':True
}


print(dictionary)

#Dictionary both data structure and data type

dictionary={

'a':[1,2,3],

'b':'hello',

'x':True

}

print(dictionary)

Dictionary

#Dictionary
user={
    'basket':[1,2,3],
    'greet': 'hello',
    'age': 20
}

user2=user.copy()
print(user)
print(user2)

print(user.popitem())
print(user)

print(user.update({'age':54}))
print(user)
print('size' in user)

print('age' in user.keys())

user2

#Dictionary

user={

'basket':[1,2,3],

'greet': 'hello',

'age': 20

}

user2=user.copy()

print(user)

print(user2)

print(user.popitem())

print(user)

print(user.update({'age':54}))

print(user)

print('size' in user)

print('age' in user.keys())

user2

Tuple:

#Tuple
my_tuple=(1,2,3,4,5)
new_tuple=my_tuple[1:4]
print(new_tuple)

x=my_tuple[0]
y=my_tuple[1]

print(x)
print(y)

x,y,z, *other=(1,2,3,4,5)
print(other)

print(my_tuple.index(5))
print(my_tuple.count(2))
print(len(my_tuple))

#Tuple

my_tuple=(1,2,3,4,5)

new_tuple=my_tuple[1:4]

print(new_tuple)

x=my_tuple[0]

y=my_tuple[1]

print(x)

print(y)

x,y,z, *other=(1,2,3,4,5)

print(other)

print(my_tuple.index(5))

print(my_tuple.count(2))

print(len(my_tuple))

Set:

set is an unordered collection of unique objects.

my_set={1,2,3,4,5}
print(my_set)
my_set.add(2)
my_set.add(100)
print(my_set)

my_list=[1,2,3,4,5,5]
print(set(my_list))

my_set={1,2,3,4,5,5}
print(len(my_set))
new_set=my_set.copy()
my_set.clear()
print(new_set)
print(my_set)

my_set={1,2,3,4,5}

print(my_set)

my_set.add(2)

my_set.add(100)

print(my_set)

my_list=[1,2,3,4,5,5]

print(set(my_list))

my_set={1,2,3,4,5,5}

print(len(my_set))

new_set=my_set.copy()

my_set.clear()

print(new_set)

print(my_set)

my_set={1,2,3,4,5,}
your_set={4,5,6,7,8,9,10}
print(my_set.intersection(your_set))
print(my_set.isdisjoint(your_set))
print(my_set.union(your_set))
print(my_set | your_set) #it is lso union sign |
print(my_set & your_set) #intersection & sign

print(my_set.issubset(your_set))
print(my_set.issuperset(your_set))
#
# z=my_set.difference(your_set)
# print(z)
# my_set.difference_update(your_set)
# zl=my_set.discard(5)
# print(zl)

my_set={1,2,3,4,5,}

your_set={4,5,6,7,8,9,10}

print(my_set.intersection(your_set))

print(my_set.isdisjoint(your_set))

print(my_set.union(your_set))

print(my_set | your_set) #it is lso union sign |

print(my_set & your_set) #intersection & sign

print(my_set.issubset(your_set))

print(my_set.issuperset(your_set))

# z=my_set.difference(your_set)

# print(z)

# my_set.difference_update(your_set)

# zl=my_set.discard(5)

# print(zl)

conditional.

is_old=False
is_licenced=False

if is_old:
    print('you are old enough to drive')
if is_old and is_licenced:
    print('you are old enough to drive, and you have a licence!')
elif is_licenced:
    print('You can drive now!')
else:
    print('you are not of age')

    print('okoko')

is_old=False

is_licenced=False

if is_old:

print('you are old enough to drive')

if is_old and is_licenced:

print('you are old enough to drive, and you have a licence!')

elif is_licenced:

print('You can drive now!')

else:

print('you are not of age')

print('okoko')

Truthy and Falsy:

is_old=bool('hello')
is_licenced=bool(5)

print(is_old)
print(is_licenced)

print(bool(''))
print(bool(0))

password='123'
username='johnny'

if password and username:
    print('Hello How are u?')

is_old=bool('hello')

is_licenced=bool(5)

print(is_old)

print(is_licenced)

print(bool(''))

print(bool(0))

password='123'

username='johnny'

if password and username:

print('Hello How are u?')

#Ternary Operator: another way to do conditional logic

#  condition_if_true if condition else confition_if_else
  is_friend=False
  can_mesage="message allowed " if is_friend else "not allowed to message"
  print(can_mesage)

#Ternary Operator: another way to do conditional logic

# condition_if_true if condition else confition_if_else

is_friend=False

can_mesage="message allowed " if is_friend else "not allowed to message"

print(can_mesage)

  #Short Circuiting
is_Friend=True
is_User=True

if is_Friend and is_User:
    print('BEST FRIENDS FOREVER')

if is_Friend or is_User:
    print('BEST FRIENDS FOREVER')

#Short Circuiting

is_Friend=True

is_User=True

if is_Friend and is_User:

print('BEST FRIENDS FOREVER')

if is_Friend or is_User:

print('BEST FRIENDS FOREVER')

#Logical operators:

print(4<5)
print(4==5)
#print(4=5)
print('a'>'A')
#short circuiting
print(1>=2>3<4)
print(0!=0)
#<> == >= >= !=
print(not(True))
print(not(False))

print(not(1==1))

#Logical operators:

print(4<5)

print(4==5)

#print(4=5)

print('a'>'A')

#short circuiting

print(1>=2>3<4)

print(0!=0)

#<> == >= >= !=

print(not(True))

print(not(False))

print(not(1==1))

Exercise: Logical Operators

is_magician = True
is_expert = False

# check if both magician AND expert: "you are a master magician"

if is_magician and is_expert:
    print('You are a master magician')

# check if magician but not expert: "at least you are getting there"
elif is_magician and not (is_expert):
    print('At least you are getting there')

# if you are not a magician : "You need magic powers"

elif not (is_magician):
    print('You need magic powers')

is_magician = True

is_expert = False

# check if both magician AND expert: "you are a master magician"

if is_magician and is_expert:

print('You are a master magician')

# check if magician but not expert: "at least you are getting there"

elif is_magician and not (is_expert):

print('At least you are getting there')

# if you are not a magician : "You need magic powers"

elif not (is_magician):

print('You need magic powers')

Equality

print(True==1)
print(''==1)
print([]==1)
print(10==10.0)
print([]==[])
print([1,2,3]==[1,2,3])

print(True==1)

print(''==1)

print([]==1)

print(10==10.0)

print([]==[])

print([1,2,3]==[1,2,3])

is vs ==
with using ‘is’ it needs to be refers to the same object

with == it needs to be equally same valued

for example:

print(True is True)
print('1'is '1')
print([] is [])
print(10 is 10.0)
print([1,2,3] is [1,2,3])

print(True is True)

print('1'is '1')

print([] is [])

print(10 is 10.0)

print([1,2,3] is [1,2,3])

for teddybears in 'Zero to Mastery':
    print(teddybears)

for teddybears in (1,2,3,4,5):
    print(teddybears)
    print(teddybears)
    print(teddybears)
print('teddybears')
#list []
#set {}
#tuple ()
#dictionary user={
#    'age': 78
# }

for item in (1,2,3,4,5):
    for x in ['a', 'b', 'c']:
        print(item, x)

#iterable-list,dictionary,tuple,set,string
#those are iterable because those can be iterated -> one by one check each item in the collection

for teddybears in 'Zero to Mastery':

print(teddybears)

for teddybears in (1,2,3,4,5):

print(teddybears)

print('teddybears')

#list []

#set {}

#tuple ()

#dictionary user={

# 'age': 78

# }

for item in (1,2,3,4,5):

for x in ['a', 'b', 'c']:

print(item, x)

#iterable-list,dictionary,tuple,set,string

#those are iterable because those can be iterated -> one by one check each item in the collection

#users is a object
users= {
    'name':'Golem',
    'age':5006,
    'can_swim':False
}
for item in users:
    print(item)

for item in users.values():
      print(item)

for item in users.keys():
      print(item)

for item in users.items():
      print(item)
      
#items values and keys for iterating over dictionaries

#users is a object

users= {

'name':'Golem',

'age':5006,

'can_swim':False

}

for item in users:

print(item)

for item in users.values():

print(item)

for item in users.keys():

print(item)

for item in users.items():

print(item)

#items values and keys for iterating over dictionaries

# users is a object
users = {
    'name': 'Golem',
    'age': 5006,
    'can_swim': False
}
for item in users:
    print(item)

for item in users.values():
    print(item)

for item in users.keys():
    print(item)

for k,v in users.items():
    print(k,v)
#collection of item is iterable

#integer 50 is not colelction so it is not iterable
for item in 50:
    print(item)

# users is a object

users = {

'name': 'Golem',

'age': 5006,

'can_swim': False

}

for item in users:

print(item)

for item in users.values():

print(item)

for item in users.keys():

print(item)

for k,v in users.items():

print(k,v)

#collection of item is iterable

#integer 50 is not colelction so it is not iterable

for item in 50:

print(item)

Exercise: Counter will print item in list

#loop and then sum up the total of the list
my_list=[1,2,3,4,5,6,7,8,9,10]

count=0
for item in my_list:
    count=count+item;
print(count)

#loop and then sum up the total of the list

my_list=[1,2,3,4,5,6,7,8,9,10]

count=0

for item in my_list:

count=count+item;

print(count)

Range

print(range(100))

#range is different kinds of object

for _ in range(10,0,-1):
    print(_)

for _ in range(0,10,-1):
    print(_)

for _ in range(5):
    print(list(range(10)))

print(range(100))

#range is different kinds of object

for _ in range(10,0,-1):

print(_)

for _ in range(0,10,-1):

print(_)

for _ in range(5):

print(list(range(10)))

Enumerate:

#enumerate
for i,char in enumerate('hellooo'):
    print(i,char)

for i,char in enumerate((1,2,3)):
    print(i,char)

for i,char in enumerate(list(range(100))):
    print(i,char)
    if char==50:
        print(f'Index is {i}')

#enumerate

for i,char in enumerate('hellooo'):

print(i,char)

for i,char in enumerate((1,2,3)):

print(i,char)

for i,char in enumerate(list(range(100))):

print(i,char)

if char==50:

print(f'Index is {i}')

while

#while condition:
i=0
while i<50:
    print(i)
    break #it is for breaking the infinite loop running

#while condition:

i=0

while i<50:

print(i)

break #it is for breaking the infinite loop running

i=0
while i<50:
    i=i+1
    print(i)

i=0

while i<50:

i=i+1

print(i)

i=0
while i<50:
    i+=1
    print(i)

i=0

while i<50:

i+=1

print(i)

i=0
while i<50:
    print(i)
    i+=1
    break
print('Done all the work!!')

i=0

while i<50:

print(i)

i+=1

break

print('Done all the work!!')

my_list=[3,2,3]
for item in my_list:
    print(item)


i=0
while i<len(my_list):
    i=i+1
    print(i)

my_list=[3,2,3]

for item in my_list:

print(item)

i=0

while i<len(my_list):

i=i+1

print(i)

while True:
    response=input('Say Something: ')
    if(response=='bye'):
        break

while True:

response=input('Say Something: ')

if(response=='bye'):

break

break, pass, continue

my_list=[1,2,3]
for item in my_list:
    print(item)
    break
    continue
    pass

print('end here')

i=0
while i<len(my_list):
    print(my_list[i])
    i += 1
    break
    continue
    pass

my_list=[1,2,3]

for item in my_list:

print(item)

break

continue

pass

print('end here')

i=0

while i<len(my_list):

print(my_list[i])

i += 1

break

continue

pass

Exercise:

picture=[
            [0,0,0,1,0,0,0],
            [0,0,1,1,1,0,0],
            [0,1,1,1,1,1,0],
            [1,1,1,1,1,1,1],
            [0,0,0,1,0,0,0],
            [0,0,0,1,0,0,0]
    ]
fill='$'
empty=''
for row in picture:
    for pixel in row:
        if (pixel==1):
            print('*', end='')
        else:
            print(' ', end='')
    print('')

#1 iterate over picture
#if 0->print ' '
#if 1-> print *

picture=[
            [0,0,0,1,0,0,0],
            [0,0,1,1,1,0,0],
            [0,1,1,1,1,1,0],
            [1,1,1,1,1,1,1],
            [0,0,0,1,0,0,0],
            [0,0,0,1,0,0,0]
    ]
fill='$'
empty=''
for row in picture:
    for pixel in row:
        if (pixel==1):
            print('*', end='')
        else:
            print(' ', end='')
    print('')

#1 iterate over picture
#if 0->print ' '
#if 1-> print *

picture=[

[0,0,0,1,0,0,0],

[0,0,1,1,1,0,0],

[0,1,1,1,1,1,0],

[1,1,1,1,1,1,1],

[0,0,0,1,0,0,0],

[0,0,0,1,0,0,0]

]

fill='$'

empty=''

for row in picture:

for pixel in row:

if (pixel==1):

print('*', end='')

else:

print(' ', end='')

print('')

#1 iterate over picture

#if 0->print ' '

#if 1-> print *

picture=[

[0,0,0,1,0,0,0],

[0,0,1,1,1,0,0],

[0,1,1,1,1,1,0],

[1,1,1,1,1,1,1],

[0,0,0,1,0,0,0],

[0,0,0,1,0,0,0]

]

fill='$'

empty=''

for row in picture:

for pixel in row:

if (pixel==1):

print('*', end='')

else:

print(' ', end='')

print('')

#1 iterate over picture

#if 0->print ' '

#if 1-> print *

Exercise:

#exercise : check for duplicates in list.
some_list = ['a','b','c','b','d','m','n','n']

duplicates = []
for value in some_list:
    if some_list.count(value) > 1:
        if value not in duplicates:
            duplicates.append(value)
print(duplicates)

#exercise : check for duplicates in list.

some_list = ['a','b','c','b','d','m','n','n']

duplicates = []

for value in some_list:

if some_list.count(value) > 1:

if value not in duplicates:

duplicates.append(value)

print(duplicates)

#functions
def say_hello():
    print('helllooooo')
say_hello()

#functions

def say_hello():

print('helllooooo')

say_hello()

#animals_list

animals=['cat','dog','rabbit']

animals.append('guinea pig')

print(animals)

#list to a list
wild_animals=['tigers','fox']

animals.append(wild_animals)
print(animals)

#animals_list

animals=['cat','dog','rabbit']

animals.append('guinea pig')

print(animals)

#list to a list

wild_animals=['tigers','fox']

animals.append(wild_animals)

print(animals)

Parameters and Arguments:

#parameters /define
def say_hello(name='Darth Vader',emoji='😊'): #default parameters has been used here
    print(f'Hellooo {name} {emoji}')

# positional arguments /call/invoking
say_hello('Zaki', '😊')
say_hello('Ira', '😊')
say_hello('Emily','😊')

#keyword arguments
say_hello(emoji='😊',name='Bibi')
say_hello()

#parameters /define

def say_hello(name='Darth Vader',emoji='😊'): #default parameters has been used here

print(f'Hellooo {name} {emoji}')

# positional arguments /call/invoking

say_hello('Zaki', '😊')

say_hello('Ira', '😊')

say_hello('Emily','😊')

#keyword arguments

say_hello(emoji='😊',name='Bibi')

say_hello()

Return in python:

How it works:

without return it prints none:

def sum(num1,num2):
    num1+num2

print(sum(10,5))

def sum(num1,num2):

num1+num2

print(sum(10,5))

with return it prints something that I insisted for:

def sum(num1,num2):
    return num1+num2

print(sum(10,5))

def sum(num1,num2):

return num1+num2

print(sum(10,5))

Nested Return:

def sum(num1,num2):
    def another_func(num1,num2):
        return num1+num2
    return another_func(num1,num2)

#should do one thing really well.
#should return something
total=sum(10,20)
print(total)

def sum(num1,num2):

def another_func(num1,num2):

return num1+num2

return another_func(num1,num2)

#should do one thing really well.

#should return something

total=sum(10,20)

print(total)

#issues with print and return

def sum(num1,num2):
    def another_func(num1,num2):
        return num1+num2
    return another_func(num1,num2)
    return 5    #this line will not return because we have already returned something before
    print('hello') #this line will not print because we have already returned something before

#should do one thing really well.
#should return something
total=sum(10,20)
print(total)

def sum(num1,num2):

def another_func(num1,num2):

return num1+num2

return another_func(num1,num2)

return 5 #this line will not return because we have already returned something before

print('hello') #this line will not print because we have already returned something before

#should do one thing really well.

#should return something

total=sum(10,20)

print(total)

Exercise:

#Exercise solution:
# #1. Wrap the above code in a function called checkDriverAge(). Whenever you call this function, you will get prompted for age.
# # Notice the benefit in having checkDriverAge() instead of copying and pasting the function everytime?
def checkDriverAge():
    age = input("What is your age?")
    if int(age)<18:
        print("Sorry, you are too young to drive this car. Powering off")
    elif int(age)>18:
        print("Powering on. Enjoy the ride!")
    elif int(age)==18:
        print("Congratulations on your first year of driving. Enjoy the ride!")

checkDriverAge()


#2 #2 Instead of using the input(). Now, make the checkDriverAge() function accept an argument of age, so that if you enter:
#checkDriverAge(92);
#it returns "Powering On. Enjoy the ride!"
#also make it so that the default age is set to 0 if no argument is given.

def checkDriverAge(age=0):
    if int(age)<18:
        print("Sorry, you are too young to drive this car. Powering off")
    elif int(age)>18:
        print("Powering on. Enjoy the ride!")
    elif int(age)==18:
        print("Congratulations on your first year of driving. Enjoy the ride!")

checkDriverAge() # no argument has been given

#Exercise solution:

# #1. Wrap the above code in a function called checkDriverAge(). Whenever you call this function, you will get prompted for age.

# # Notice the benefit in having checkDriverAge() instead of copying and pasting the function everytime?

def checkDriverAge():

age = input("What is your age?")

if int(age)<18:

print("Sorry, you are too young to drive this car. Powering off")

elif int(age)>18:

print("Powering on. Enjoy the ride!")

elif int(age)==18:

print("Congratulations on your first year of driving. Enjoy the ride!")

checkDriverAge()

#2 #2 Instead of using the input(). Now, make the checkDriverAge() function accept an argument of age, so that if you enter:

#checkDriverAge(92);

#it returns "Powering On. Enjoy the ride!"

#also make it so that the default age is set to 0 if no argument is given.

def checkDriverAge(age=0):

if int(age)<18:

print("Sorry, you are too young to drive this car. Powering off")

elif int(age)>18:

print("Powering on. Enjoy the ride!")

elif int(age)==18:

print("Congratulations on your first year of driving. Enjoy the ride!")

checkDriverAge() # no argument has been given

#builtin functions
list()
print()
max()
min()
input()

#custom function
def some_random_stuff():
    pass

some_random_stuff()

'hellloooo'.capitalize() #method is coming while putting dot for object string hellooo

#builtin functions

list()

print()

max()

min()

input()

#custom function

def some_random_stuff():

pass

some_random_stuff()

'hellloooo'.capitalize() #method is coming while putting dot for object string hellooo

#docstring
def test(a):
    '''
    Info   #we use it to tell that the documents to others
    '''

    print(a)

test('!!!!')
help(test)

#magic method
print(test.__doc__)

#docstring

def test(a):

'''

Info #we use it to tell that the documents to others

'''

print(a)

test('!!!!')

help(test)

#magic method

print(test.__doc__)

# #clean code
# def is_even(num):
#     if num%2 == 0:
#         return True
#     elif num%2 != 0:
#         return False
# print(is_even(51))

#more cleaning
# def is_even(num):
#     if num%2 == 0:
#         return True
#     else:
#         return False
# print(is_even(51))


#more more cleaner
# def is_even(num):
#     if num%2 == 0:
#         return True
#     return False
# print(is_even(51))


#clean code
def is_even(num):
    return num%2 == 0

print(is_even(51))

# #clean code

# def is_even(num):

# if num%2 == 0:

# return True

# elif num%2 != 0:

# return False

# print(is_even(51))

#more cleaning

# def is_even(num):

# if num%2 == 0:

# return True

# else:

# return False

# print(is_even(51))

#more more cleaner

# def is_even(num):

# if num%2 == 0:

# return True

# return False

# print(is_even(51))

#clean code

def is_even(num):

return num%2 == 0

print(is_even(51))

#*args #**kwargs

# def sup_func(args):
#     return sum(args)
#
# sup_func(1,2,3,4,5)

def sup_func(name,*hoola,i='hi',**kwargs):
        print(hoola)
        print(kwargs)
        total=0
        for items in kwargs.values():
            total+=items
        return sum(hoola)+total

print(sup_func(1,2,3,4,5, num1=5, num2=10))

#Rule: params, *args, default parameters, **kwargs

#*args #**kwargs

# def sup_func(args):

# return sum(args)

# sup_func(1,2,3,4,5)

def sup_func(name,*hoola,i='hi',**kwargs):

print(hoola)

print(kwargs)

total=0

for items in kwargs.values():

total+=items

return sum(hoola)+total

print(sup_func(1,2,3,4,5, num1=5, num2=10))

#Rule: params, *args, default parameters, **kwargs

#*args #**kwargs

# def sup_func(args):
#     return sum(args)
#
# sup_func(1,2,3,4,5)

def sup_func(name,*hoola,i='hi',**kwargs):
        print(hoola)
        print(kwargs)
        total=0
        for items in kwargs.values():
            total+=items
        return sum(hoola)+total

print(sup_func(1,2,3,4,5, num1=5, num2=10))

#Rule: params, *args, default parameters, **kwargs

#*args #**kwargs

# def sup_func(args):

# return sum(args)

# sup_func(1,2,3,4,5)

def sup_func(name,*hoola,i='hi',**kwargs):

print(hoola)

print(kwargs)

total=0

for items in kwargs.values():

total+=items

return sum(hoola)+total

print(sup_func(1,2,3,4,5, num1=5, num2=10))

#Rule: params, *args, default parameters, **kwargs

Exercise: To find even and max value from a list

def highest_even(li):
    evens = []
    for items in li:
        if items%2 == 0:
            evens.append(items)
    return max(evens)

print(highest_even([10,2,3,4,8,11]))

def highest_even(li):

evens = []

for items in li:

if items%2 == 0:

evens.append(items)

return max(evens)

print(highest_even([10,2,3,4,8,11]))

#walrus operator
a = 'hellooooooo'
if ((n:=len(a))>10):
    print(f"too long {n} elements")
while(( n:= len(a))>1):
    print(n)
    a=a[:-1]
    print(a)

#walrus operator

a = 'hellooooooo'

if ((n:=len(a))>10):

print(f"too long {n} elements")

while(( n:= len(a))>1):

print(n)

a=a[:-1]

print(a)

#scope-what variables do i have access to?
total=100
if True:
    x=10

def some_func():
    total=100

print(x)

#scope-what variables do i have access to?

total=100

if True:

x=10

def some_func():

total=100

print(x)

print(type(None))
print(type(True))
print(type(5))
print(type(5.5))
print(type('hi'))
print(type([]))
print(type(()))
print(type({}))
class BigObject: #class
    pass

obj1=BigObject()#instantiate

obj2=BigObject()
obj3=BigObject()
#Everthying is an object when we use class keyword
print(type(BigObject))
print(type(obj1))

print(type(None))

print(type(True))

print(type(5))

print(type(5.5))

print(type('hi'))

print(type([]))

print(type(()))

print(type({}))

class BigObject: #class

pass

obj1=BigObject()#instantiate

obj2=BigObject()

obj3=BigObject()

#Everthying is an object when we use class keyword

print(type(BigObject))

print(type(obj1))

#oop learning by me
#dry=do not repeat your self
#blueprint
class PlayerCharacters:
    def __init__(self, name, age):
        self.name=name #attributes
        self.age=age

    def run(self):
        print('run')
        return 'done'
#instances
player1=PlayerCharacters('Cindy',44)
player2=PlayerCharacters('Tom',21)

print(player1.name,player1.age)
print(player2.name,player2.age)
print(player1.run())
print(player1)
print(player2)

#oop learning by me

#dry=do not repeat your self

#blueprint

class PlayerCharacters:

def __init__(self, name, age):

self.name=name #attributes

self.age=age

def run(self):

print('run')

return 'done'

#instances

player1=PlayerCharacters('Cindy',44)

player2=PlayerCharacters('Tom',21)

print(player1.name,player1.age)

print(player2.name,player2.age)

print(player1.run())

print(player1)

print(player2)

Abstraction: private vs Public

class PlayerCharacter:
    def __init__(self,name,age): #__init is dunder methods
        self._name=name #private is abstraction shows _name
        self._age=age

    def run(self):
        print('run')

    def speak(self):
        print(f'my name is {self.name}, and I am {self.age} years old')

player1=PlayerCharacter('Andrei',100)


print(player1.speak())

class PlayerCharacter:

def __init__(self,name,age): #__init is dunder methods

self._name=name #private is abstraction shows _name

self._age=age

def run(self):

print('run')

def speak(self):

print(f'my name is {self.name}, and I am {self.age} years old')

player1=PlayerCharacter('Andrei',100)

print(player1.speak())

Inheritance:

#users -wizard - archers -ogres
class User:
    def sign_in(self):
        print('logged in')

class Wizard(User):
    def __init__(self, name, power):
        self.name=name
        self.power=power
    def attack(self):
        print(f'attacking with power of self.power')
class Archer(User):
    def __init__(self, name, num_arrow):
        self.name=name
        self.num_arrow=num_arrow
    def attack(self):
        print(f'attacking with arrows: arrows left {self.num_arrow}')

wizard1=Wizard('Merlin', 50)
archer1=Archer('Robin',100)
wizard1.attack()
archer1.attack()

print(isinstance(wizard1, Wizard))
print(isinstance(wizard1, User))
print(isinstance(wizard1, object))
[].__repr__()
wizard1.__repr__()

#users -wizard - archers -ogres

class User:

def sign_in(self):

print('logged in')

class Wizard(User):

def __init__(self, name, power):

self.name=name

self.power=power

def attack(self):

print(f'attacking with power of self.power')

class Archer(User):

def __init__(self, name, num_arrow):

self.name=name

self.num_arrow=num_arrow

def attack(self):

print(f'attacking with arrows: arrows left {self.num_arrow}')

wizard1=Wizard('Merlin', 50)

archer1=Archer('Robin',100)

wizard1.attack()

archer1.attack()

print(isinstance(wizard1, Wizard))

print(isinstance(wizard1, User))

print(isinstance(wizard1, object))

[].__repr__()

wizard1.__repr__()

Polymorphism:

#users -wizard - archers -ogres
class User:
    def sign_in(self):
        print('logged in')

class Wizard(User):
    def __init__(self, name, power):
        self.name=name
        self.power=power
    def attack(self):
        print(f'attacking with power of {self.power}')
class Archer(User):
    def __init__(self, name, num_arrow):
        self.name=name
        self.num_arrow=num_arrow
    def attack(self):
        print(f'attacking with arrows: arrows left {self.num_arrow}')

wizard1=Wizard('Merlin', 50)
archer1=Archer('Robin',100)
wizard1.attack()
archer1.attack()

print(isinstance(wizard1, Wizard))
print(isinstance(wizard1, User))
print(isinstance(wizard1, object))
[].__repr__()
wizard1.__repr__()

print(wizard1.attack())

def player_attack(char):
    char.attack()

for char in [wizard1,archer1]:
    char.attack()

#users -wizard - archers -ogres

class User:

def sign_in(self):

print('logged in')

class Wizard(User):

def __init__(self, name, power):

self.name=name

self.power=power

def attack(self):

print(f'attacking with power of {self.power}')

class Archer(User):

def __init__(self, name, num_arrow):

self.name=name

self.num_arrow=num_arrow

def attack(self):

print(f'attacking with arrows: arrows left {self.num_arrow}')

wizard1=Wizard('Merlin', 50)

archer1=Archer('Robin',100)

wizard1.attack()

archer1.attack()

print(isinstance(wizard1, Wizard))

print(isinstance(wizard1, User))

print(isinstance(wizard1, object))

[].__repr__()

wizard1.__repr__()

print(wizard1.attack())

def player_attack(char):

char.attack()

for char in [wizard1,archer1]:

char.attack()

no amount of video is enough you have to learn by your way of development projects.

4 pillars in oop Encapsulation, Abstraction, Inherítance, Polymorphism

Now i am looking for another video from youtube to earn something about it.

class Customer:
    def __init__(self,name,membertype):
        self.name=name
        self.membertype=membertype

        #encapsulation  with custom methods

    def update_membership(self, new_membership):
        self.membertype=new_membership

    def read_customer(self):
             print("Reading customer from DB")

# c=Customer('Zaki Live', 'Bronze')
# print(c.name,c.membertype)
#
# c2=Customer('Miranda','Golds')
# print(c2.name,c2.membertype)

customers=[Customer('Zaki Live', 'Bronze'),
           Customer('Miranda','Golds')]

print(customers[1].membertype)
customers[1].update_membership("Bronze")
print(customers[1].membertype)


# print(customers[0].name,customers[0].membertype)
# print(customers[1].name,customers[1].membertype)


#end of encapsulation

class Customer:

def __init__(self,name,membertype):

self.name=name

self.membertype=membertype

#encapsulation with custom methods

def update_membership(self, new_membership):

self.membertype=new_membership

def read_customer(self):

print("Reading customer from DB")

# c=Customer('Zaki Live', 'Bronze')

# print(c.name,c.membertype)

# c2=Customer('Miranda','Golds')

# print(c2.name,c2.membertype)

customers=[Customer('Zaki Live', 'Bronze'),

Customer('Miranda','Golds')]

print(customers[1].membertype)

customers[1].update_membership("Bronze")

print(customers[1].membertype)

# print(customers[0].name,customers[0].membertype)

# print(customers[1].name,customers[1].membertype)

#end of encapsulation

Now the exercise from the udemy course:

Super,Object Introspection, Dunder/Magic method

1st example:

#super, object introspection and Dunder method
class User(object):
    def __init__(self,email):
        self.email=email

    def sign_in(self):
        print('logged in')
class Wizard(User):
    def __init__(self,name,power,email):
        super().__init__(email)
        #User.__init__(self, email)
        self.name=name
        self.power=power

    def attack(self):
        print(f'{self.name} attacking with power of {self.power} ')

wizard1=Wizard('Merlin', 60, 'merlin20@gmail.com')
print(wizard1.attack())
print(wizard1.email)
#object introspection
print(dir(wizard1))

class Toy():
    def __init__(self,color,age):
        self.color=color
        self.age=age

    def __str__(self):
        return f'{self.color}'

    def __len__(self):
        return 5
    def __del__(self):
        print('deleted')
    def __call__(self):
        return('Yesss???')

action_figure=Toy('red',0)
print(action_figure.__str__())#Dunder method
print(str(action_figure))
print(len(action_figure))
del action_figure
print(action_figure.__call__())

#super, object introspection and Dunder method

class User(object):

def __init__(self,email):

self.email=email

def sign_in(self):

print('logged in')

class Wizard(User):

def __init__(self,name,power,email):

super().__init__(email)

#User.__init__(self, email)

self.name=name

self.power=power

def attack(self):

print(f'{self.name} attacking with power of {self.power} ')

wizard1=Wizard('Merlin', 60, '[email protected]')

print(wizard1.attack())

print(wizard1.email)

#object introspection

print(dir(wizard1))

class Toy():

def __init__(self,color,age):

self.color=color

self.age=age

def __str__(self):

return f'{self.color}'

def __len__(self):

return 5

def __del__(self):

print('deleted')

def __call__(self):

return('Yesss???')

action_figure=Toy('red',0)

print(action_figure.__str__())#Dunder method

print(str(action_figure))

print(len(action_figure))

del action_figure

print(action_figure.__call__())

2nd example:

class Toy():
    def __init__(self,color,age):
        self.color=color
        self.age=age
        self.my_dict={
            'name': 'Yoyo',
            'has_pets': False
        }

    def __str__(self):
        return f'{self.color}'

    def __len__(self):
        return 5
    def __del__(self):
        print('deleted')
    def __call__(self):
        return('Yesss???')

    def __getitem__(self, i):
        return self.my_dict[i]

action_figure=Toy('red',0)
print(action_figure.__str__())#Dunder method
print(str(action_figure))
print(len(action_figure))

print(action_figure['name'])
print(action_figure.__call__())
del action_figure

class Toy():

def __init__(self,color,age):

self.color=color

self.age=age

self.my_dict={

'name': 'Yoyo',

'has_pets': False

}

def __str__(self):

return f'{self.color}'

def __len__(self):

return 5

def __del__(self):

print('deleted')

def __call__(self):

return('Yesss???')

def __getitem__(self, i):

return self.my_dict[i]

action_figure=Toy('red',0)

print(action_figure.__str__())#Dunder method

print(str(action_figure))

print(len(action_figure))

print(action_figure['name'])

print(action_figure.__call__())

del action_figure

#modify the builtin classes/custom dunder/magic method
class SuperList(list):
    def __len__(self):
        return 1000

super_list1=SuperList();
print(len(super_list1))
super_list1.append(5)
print(super_list1[0])
print(issubclass(SuperList,object))

#modify the builtin classes/custom dunder/magic method

class SuperList(list):

def __len__(self):

return 1000

super_list1=SuperList();

print(len(super_list1))

super_list1.append(5)

print(super_list1[0])

print(issubclass(SuperList,object))

#Multiple Inheritance

#multiple inheritance
class User():
    def sign_in(self):
        return(f'logged in')

class Wizard(User):
    def __init__(self,name,power):
        self.name=name
        self.power=power

    def attack(self):
        return(f'Attacking with power of {self.power}')


class Archer(User):
    def __init__(self,name,arrows):
        self.name=name
        self.arrows=arrows

    def check_arrows(self):
        return(f'{self.arrows} remaining')

    def run(self):
        return('ran really fast')

class HybridBord(Wizard,Archer): #multiple inheritance check here calling two another class
    def __init__(self,name,power,arrows):
        Archer.__init__(self,name,arrows)
        Wizard.__init__(self,power,arrows)


hb1=HybridBord('borgie',50,100)
print(hb1.sign_in())
print(hb1.run())
print(hb1.check_arrows())
print(hb1.attack())

#multiple inheritance

class User():

def sign_in(self):

return(f'logged in')

class Wizard(User):

def __init__(self,name,power):

self.name=name

self.power=power

def attack(self):

return(f'Attacking with power of {self.power}')

class Archer(User):

def __init__(self,name,arrows):

self.name=name

self.arrows=arrows

def check_arrows(self):

return(f'{self.arrows} remaining')

def run(self):

return('ran really fast')

class HybridBord(Wizard,Archer): #multiple inheritance check here calling two another class

def __init__(self,name,power,arrows):

Archer.__init__(self,name,arrows)

Wizard.__init__(self,power,arrows)

hb1=HybridBord('borgie',50,100)

print(hb1.sign_in())

print(hb1.run())

print(hb1.check_arrows())

print(hb1.attack())

#Method Resolution Order(MRO)

#Method Resolution Order(MRO)
class A:
    #num=10
    pass
class B(A):
    pass
    #num=59
class C(A):
    #num=1
    pass
class D(B,C):
    pass

print(D.mro())
#print(D.num)
D.__str__ #WE ARE USING DUNDER STRING


Output:
[<class '__main__.D'>, <class '__main__.B'>, <class '__main__.C'>, <class '__main__.A'>, <class 'object'>]

#Method Resolution Order(MRO)

class A:

#num=10

pass

class B(A):

pass

#num=59

class C(A):

#num=1

pass

class D(B,C):

pass

print(D.mro())

#print(D.num)

D.__str__ #WE ARE USING DUNDER STRING

Output:

[<class '__main__.D'>, <class '__main__.B'>, <class '__main__.C'>, <class '__main__.A'>, <class 'object'>]

class X:pass
class Y:pass
class Z:pass
class A(X,Y):pass
class B(Y,Z):pass
class M(B,A,Z):pass
M.mro()
print(M.__mro__) #mro string same output as the prevoious line

Output:

(<class '__main__.M'>, <class '__main__.B'>, <class '__main__.A'>,
 <class '__main__.X'>, <class '__main__.Y'>, <class '__main__.Z'>, <class 'object'>)

class X:pass

class Y:pass

class Z:pass

class A(X,Y):pass

class B(Y,Z):pass

class M(B,A,Z):pass

M.mro()

print(M.__mro__) #mro string same output as the prevoious line

Output:

(<class '__main__.M'>, <class '__main__.B'>, <class '__main__.A'>,

<class '__main__.X'>, <class '__main__.Y'>, <class '__main__.Z'>, <class 'object'>)

Pure Function

#without outside effects
def multiply_by2(li):
    new_list=[]
    for item in li:
        new_list.append(item*2)
    return new_list

print(multiply_by2([1,2,3]))

#with outside effects
def multiply_by2(li):
    new_list=[]
    for item in li:
        new_list.append(item*2)
    return print(new_list)

multiply_by2([1,2,3])

new_list=[] #it is list but effected by empty string
def multiply_by2(li):
    for item in li:
        new_list.append(item*2)
    return print(new_list)
new_list='' #empty string,
multiply_by2([1,2,3])

#another example
wizard  = {
    'name': 'Merlin',   #this is separated so if there any bug it will not effect the pure function
    'power': 50
}

def attack(character):
    new_list=[]
    for item in character:
        new_list.append(item*2)
    return new_list

print(multiply_by2([1,2,3]))

#we always need to write pure function which does effected by outside world

#without outside effects

def multiply_by2(li):

new_list=[]

for item in li:

new_list.append(item*2)

return new_list

print(multiply_by2([1,2,3]))

#with outside effects

def multiply_by2(li):

new_list=[]

for item in li:

new_list.append(item*2)

return print(new_list)

multiply_by2([1,2,3])

new_list=[] #it is list but effected by empty string

def multiply_by2(li):

for item in li:

new_list.append(item*2)

return print(new_list)

new_list='' #empty string,

multiply_by2([1,2,3])

#another example

wizard = {

'name': 'Merlin', #this is separated so if there any bug it will not effect the pure function

'power': 50

}

def attack(character):

new_list=[]

for item in character:

new_list.append(item*2)

return new_list

print(multiply_by2([1,2,3]))

#we always need to write pure function which does effected by outside world

Map()

#map, #filter, #zip and reduce

#map structure for writing codes
# map(fun,iter) where fun=it is a function wheich passes each elements of given iterable and iter = iterable which needs to be mapped

def multiply_by2(item):
    return item*2

numbers1=[1,2,3]
results1=map(multiply_by2, numbers1)
print(list(results1))


#a simple python program for map
#return double of n
def addition(n):
    return n+n
#we double all numbers using map()
numbers=(1,2,3,4)
result=map(addition,numbers)
print(list(result))

#map, #filter, #zip and reduce

#map structure for writing codes

# map(fun,iter) where fun=it is a function wheich passes each elements of given iterable and iter = iterable which needs to be mapped

def multiply_by2(item):

return item*2

numbers1=[1,2,3]

results1=map(multiply_by2, numbers1)

print(list(results1))

#a simple python program for map

#return double of n

def addition(n):

return n+n

#we double all numbers using map()

numbers=(1,2,3,4)

result=map(addition,numbers)

print(list(result))

filter()

my_list=[1,2,3]
def only_odd(item):
      return item%2!=0

result=filter(only_odd,my_list)
print(list(result))

my_list=[1,2,3]

def only_odd(item):

return item%2!=0

result=filter(only_odd,my_list)

print(list(result))

zip()

my_list=[1,2,3]
your_list=(10,20,30)
their_list=[5,4,3]
print(list(zip(my_list,your_list,their_list)))

my_list=[1,2,3]

your_list=(10,20,30)

their_list=[5,4,3]

print(list(zip(my_list,your_list,their_list)))

output: [(1, 10, 5), (2, 20, 4), (3, 30, 3)]

reduce() function and how it works in python:

I have seen two videos here from udemy and youtube to clear this concept for me

code from udemy:

reduce()

from functools import reduce
my_list = [1,2,3]
def accumulator(acc,item):
    print(acc, item) # to show how it is going
    return acc+item
print(reduce(accumulator,my_list,0)) #we are starting from 0 to iterate
print(reduce(accumulator,my_list,10)) #we are starting from 10 to iterate

from functools import reduce

my_list = [1,2,3]

def accumulator(acc,item):

print(acc, item) # to show how it is going

return acc+item

print(reduce(accumulator,my_list,0)) #we are starting from 0 to iterate

print(reduce(accumulator,my_list,10)) #we are starting from 10 to iterate

Output:

0 1

1 2

3 3

10 1

11 2

13 3

Exercise solutions here in function:

#1 Capitalize all of the pet names and print the list

my_pets = ['sisi', 'bibi', 'titi', 'carla']

def capiFunc(string):
    return string.upper()
print(list(map(capiFunc,my_pets)))

my_pets = ['sisi', 'bibi', 'titi', 'carla']

def capiFunc(string):

return string.upper()

print(list(map(capiFunc,my_pets)))

output:

['SISI', 'BIBI', 'TITI', 'CARLA']

1	['SISI', 'BIBI', 'TITI', 'CARLA']

#2 Zip the 2 lists into a list of tuples, but sort the numbers from lowest to highest.

my_strings = ['a', 'b', 'c', 'd', 'e']
my_numbers = [5,4,3,2,1]
list_number_new=sorted(my_numbers)
print(list(zip(my_strings,list_number_new)))

my_strings = ['a', 'b', 'c', 'd', 'e']

my_numbers = [5,4,3,2,1]

list_number_new=sorted(my_numbers)

print(list(zip(my_strings,list_number_new)))

#3 Filter the scores that pass over 50%

scores = [73, 20, 65, 19, 76, 100, 88]
def morethan50(item):
    return item>50
print(list(filter(morethan50,scores)))

scores = [73, 20, 65, 19, 76, 100, 88]

def morethan50(item):

return item>50

print(list(filter(morethan50,scores)))

#4 Combine all of the numbers that are in a list on this file using reduce (my_numbers and scores). What is the total?

def addition(accu,item):
    return accu+item
print(reduce(addition,(my_numbers+scores),0))

def addition(accu,item):

return accu+item

print(reduce(addition,(my_numbers+scores),0))

Output:

456

456

Lambda Expressions in python:

Lambda is a computer science term. Which is an anonymous function. Which don’t use more than once for a purpose. Usually in lambda we don’t need to decalre any function name. What happens inside a function we can write in simple line using lambda function.

lambda using map:

#lambda expressions
numbers=[1,2,3]
# def multiply_by2(item):
#     return item*2

#print(list(map(multiply_by2, numbers)))
print(list(map(lambda item: item*2, numbers))) # this line will be forgtten after run lambda param: action(param)

#lambda expressions

numbers=[1,2,3]

# def multiply_by2(item):

# return item*2

#print(list(map(multiply_by2, numbers)))

print(list(map(lambda item: item*2, numbers))) # this line will be forgtten after run lambda param: action(param)

lambda using filter:

#lambda expressions
numbers=[1,2,3]
print(list(filter(lambda item: item%2!=0, numbers))) # this line will be forgtten after run lambda param: action(param)

#lambda expressions

numbers=[1,2,3]

print(list(filter(lambda item: item%2!=0, numbers))) # this line will be forgtten after run lambda param: action(param)

lambda using reduce:

#lambda expressions
from functools import reduce
numbers=[1,2,3]
print(reduce(lambda acc,item: acc+item, numbers)) # this line will be forgtten after run lambda param: action(param)

#lambda expressions

from functools import reduce

numbers=[1,2,3]

print(reduce(lambda acc,item: acc+item, numbers)) # this line will be forgtten after run lambda param: action(param)

# Exercises using lambda
1. make a lambda example to squre

my_list=[5,4,3]
print(list(map(lambda item:item**2,my_list)))

1 2	my_list=[5,4,3] print(list(map(lambda item:item**2,my_list)))

2. make a lambda example to make a sorted list

a=[(0,2),(4,3),(9,9),(10,-1)]
print(list(filter(lambda item:sorted(a),a)))

a.sort(key=lambda x:x[1])
print(a)

a=[(0,2),(4,3),(9,9),(10,-1)]

print(list(filter(lambda item:sorted(a),a)))

a.sort(key=lambda x:x[1])

print(a)

List Comprehension

#list, comprehension
my_list=[]
for char in 'hello':
    my_list.append(char)

print(my_list)

#another rule with list comprehension using like that format below
#my_list=[param for param in iterable]
my_list=[char for char in 'hello']
my_list2=[num for num in range(0,100)]
my_list3=[num**2 for num in range(0,100)]
my_list4=[num**2 for num in range(0,100) if num%2==0]
print(my_list)
print(my_list2)
print(my_list3)
print(my_list4)

#list, comprehension

my_list=[]

for char in 'hello':

my_list.append(char)

print(my_list)

#another rule with list comprehension using like that format below

#my_list=[param for param in iterable]

my_list=[char for char in 'hello']

my_list2=[num for num in range(0,100)]

my_list3=[num**2 for num in range(0,100)]

my_list4=[num**2 for num in range(0,100) if num%2==0]

print(my_list)

print(my_list2)

print(my_list3)

print(my_list4)

Set and Dict Comprehension:

#set only allow numbers
# set only allow unique numbers or characters that is why out put has only once in 
my_list={char for char in 'hello'}
my_list2={num for num in range(0,100)}
my_list3={num**2 for num in range (0,100)}
my_list4={num**2 for num in range (0,100)}
print(my_list)
print(my_list2)
print(my_list3)
print(my_list4)

#set only allow numbers

# set only allow unique numbers or characters that is why out put has only once in

my_list={char for char in 'hello'}

my_list2={num for num in range(0,100)}

my_list3={num**2 for num in range (0,100)}

my_list4={num**2 for num in range (0,100)}

print(my_list)

print(my_list2)

print(my_list3)

print(my_list4)

#dict comprehension

#dict comprehension
simple_dict={
    'a':1,
    'b':2
}

#my_dict={key:value**2 for key,value in simple_dict.items()}
my_dict={k:v**2 for k,v in simple_dict.items() if v%2==0} #another way
my_dict1={num:num**2 for num in [1,2,3]} #different way to print dict
print(my_dict)
print(my_dict1)

#dict comprehension

simple_dict={

'a':1,

'b':2

}

#my_dict={key:value**2 for key,value in simple_dict.items()}

my_dict={k:v**2 for k,v in simple_dict.items() if v%2==0} #another way

my_dict1={num:num**2 for num in [1,2,3]} #different way to print dict

print(my_dict)

print(my_dict1)

Comprehension is for shorthand.

Now a small exercise:

Problem: to write a one line code to find duplicate character to show in a answer
Soln code:

some_list=['a','b','c','d','b','m','n','n']
duplicates=[]
# for value in some_list:
#     if some_list.count(value)>1:
#         if value not in duplicates:
#             duplicates.append(value)
duplicates=list(set([x for x in some_list if some_list.count(x)>1]))
print(duplicates)

some_list=['a','b','c','d','b','m','n','n']

duplicates=[]

# for value in some_list:

# if some_list.count(value)>1:

# if value not in duplicates:

# duplicates.append(value)

duplicates=list(set([x for x in some_list if some_list.count(x)>1]))

print(duplicates)

Output:

['b', 'n']

1	['b', 'n']

Decorators:

#decorators @classmethod @staticmethod it is start with @ sign
def hello():
    print('hellllooooo');

greet = hello
del hello #keywords del delete the function

print(greet())

#decorators @classmethod @staticmethod it is start with @ sign

def hello():

print('hellllooooo');

greet = hello

del hello #keywords del delete the function

print(greet())

another example:

#decorators @classmethod @staticmethod it is start with @ sign
def hello(func):
    func()

def greet():
    print('still here')

a=hello(greet)

print(a)

#decorators @classmethod @staticmethod it is start with @ sign

def hello(func):

func()

def greet():

print('still here')

a=hello(greet)

print(a)

Higher Order Function HOC

#higher order function(HOC)
def greet(func):
    func()
    
#filter(),map(),reduce(), all are higher order function
def greet2():
    def func():
        return 5
    return func

#higher order function(HOC)

def greet(func):

func()

#filter(),map(),reduce(), all are higher order function

def greet2():

def func():

return 5

return func

the decorator can supercharge the function and can add an extra feature

Decorator:

#decorator

def my_decorator(func):
    def wrap_func():
        print('******')
        func()
        print('******')
    return wrap_func

@my_decorator
def hello():
    print('helllooooo')

@my_decorator
def bye():
    print('Tschüß, see you later')

# hello()
# bye()

# a=my_decorator(hello)
# a()

# my_decorator(hello)()

#decorator

def my_decorator(func):

def wrap_func():

print('******')

func()

print('******')

return wrap_func

@my_decorator

def hello():

print('helllooooo')

@my_decorator

def bye():

print('Tschüß, see you later')

# hello()

# bye()

# a=my_decorator(hello)

# a()

# my_decorator(hello)()

Another example:

#Decorator
def my_decorator(func):
    def wrap_func(*args,**kwargs):
        print('*****')
        func(*args,**kwargs)
        print('*****')
    return wrap_func

@my_decorator
def hello(greeting, emoji=':('):
    print(greeting, emoji)

hello('hiii')

# a= my_decorator(hello)
# a('hiii',':)')
# hello('Hiii')

#Decorator

def my_decorator(func):

def wrap_func(*args,**kwargs):

print('*****')

func(*args,**kwargs)

print('*****')

return wrap_func

@my_decorator

def hello(greeting, emoji=':('):

print(greeting, emoji)

hello('hiii')

# a= my_decorator(hello)

# a('hiii',':)')

# hello('Hiii')

Practical Application of Decorator:

from time import time

def performance_time(fn):
	def wrapper(*args, **kwargs):
		t1=time()
		result=fn(*args,**kwargs)
		t2=time()
		print(f'took {t2-t1} seconds')
		return result
	return wrapper
	
@performance_time
def long_time():
	for i in range(100000000):
		i*5
		
long_time()

from time import time

def performance_time(fn):

def wrapper(*args, **kwargs):

t1=time()

result=fn(*args,**kwargs)

t2=time()

print(f'took {t2-t1} seconds')

return result

return wrapper

@performance_time

def long_time():

for i in range(100000000):

i*5

long_time()

Exercise:

Need to do later as it is not downloading on my tablet

Error Handling:

# print(1+'hello')
# #error handling
# def hoooohooo():
#     pass
#     1+name
#     di={'a':1}
#     5/num
#syntax error
#error handling
while True:
    try: #the asking
        age=int(input('what is your age?'))
        #print(age)
        10/age #it is buggy if we give age 0
    except ValueError: #if there is error do this
        print('Please enter a number')
    except ZeroDivisionError:
        print('Please enter age higher than 0')

    else: #if there is no error do this
        print('Thank you')
        break

# print(1+'hello')

# #error handling

# def hoooohooo():

# pass

# 1+name

# di={'a':1}

# 5/num

#syntax error

#error handling

while True:

try: #the asking

age=int(input('what is your age?'))

#print(age)

10/age #it is buggy if we give age 0

except ValueError: #if there is error do this

print('Please enter a number')

except ZeroDivisionError:

print('Please enter age higher than 0')

else: #if there is no error do this

print('Thank you')

break

error:

#error handling
def sum(num1,num2):
    try:
        return num1+num2
    # except TypeError as err:
    #     print(f'Something is wrong {err}')
    #     print(err)
    except(TypeError,ZeroDivisionError) as err:
        print('oops!')
        print(err)

print(sum(1,'2'))

#error handling

def sum(num1,num2):

try:

return num1+num2

# except TypeError as err:

# print(f'Something is wrong {err}')

# print(err)

except(TypeError,ZeroDivisionError) as err:

print('oops!')

print(err)

print(sum(1,'2'))

while True:
    try:
        age=int(input('What is your age?'))
        99/age
    except ValueError:
        print('Please enter a number')
        #continue
    except ZeroDivisionError:
        print('Please enter age higher than 0')
        break
    else:
        print('thank you!')
        break
    finally:
        print('ok, i am finally done')
    print('can you hear me?')

while True:

try:

age=int(input('What is your age?'))

99/age

except ValueError:

print('Please enter a number')

#continue

except ZeroDivisionError:

print('Please enter age higher than 0')

break

else:

print('thank you!')

break

finally:

print('ok, i am finally done')

print('can you hear me?')

custom error in error handling:

while True:
    try:
        age=int(input('What is your age?'))
        99/age
        #raise ValueError('Hey cut it out!')
        raise Exception('Hey cut it out!')
    except ZeroDivisionError:
        print('Please enter age higher than 0')
        #break
    else:
        print('thank you!')
       # break
    finally:
        print('ok, i am finally done')
    print('can you hear me?')

while True:

try:

age=int(input('What is your age?'))

99/age

#raise ValueError('Hey cut it out!')

raise Exception('Hey cut it out!')

except ZeroDivisionError:

print('Please enter age higher than 0')

#break

else:

print('thank you!')

# break

finally:

print('ok, i am finally done')

print('can you hear me?')

Generators:
Range is a generator. Generator is special type in python

generator is iterable but all iterable is not generator
example: range is generator that is always iterable, list is also iterable but not generator

Modules:

import shopping.shopping_cart
import utility

print(shopping.shopping_cart.buy('Gorur Mangsho','Murgir Mangsho','Biriyani'))

import shopping.shopping_cart

import utility

print(shopping.shopping_cart.buy('Gorur Mangsho','Murgir Mangsho','Biriyani'))

def buy(*item):
    cart=[]
    cart.append(item)
    return cart

def buy(*item):

cart=[]

cart.append(item)

return cart

Some examples of using modules here:
utility.py : in this file I put all the functions for opertions

def multiply(num1, num2):
    return num1*num2


def divide(num1, num2):
    return num1/num2

def multiply(num1, num2):

return num1*num2

def divide(num1, num2):

return num1/num2

Now I am sending values to those function using main :

import utility

print("Divide")
print(utility.divide(4,2))
print("Multiply")
print(utility.multiply(2,3))

import utility

print("Divide")

print(utility.divide(4,2))

print("Multiply")

print(utility.multiply(2,3))

Again another way:
main_buy.py:

import shopping_cart
#import shopping.shopping_cart //here shopping is packages and shopping_cart is module


print(shopping_cart.buy("Goru"))
#print(shopping.shopping_cart.buy("Goru"))

import shopping_cart

#import shopping.shopping_cart //here shopping is packages and shopping_cart is module

print(shopping_cart.buy("Goru"))

#print(shopping.shopping_cart.buy("Goru"))

shopping_cart.py:

def buy(item):
    cart=[]
    cart.append(item)
    return cart

def buy(item):

cart=[]

cart.append(item)

return cart

The thing need to remember usually in a package automatically a file __init__.py creates.

Another important thing a successful program without error run with exit code 0
And with error run with exit code 1

Another way of example:

main.py

from utility import multiply,divide
#from utility import *
from shopping.more_shopping.shopping_cart import buy

print(buy('apple'))
print(divide(5,2))
print(multiply(5,2))
print(max([1,2,3]))

from utility import multiply,divide

#from utility import *

from shopping.more_shopping.shopping_cart import buy

print(buy('apple'))

print(divide(5,2))

print(multiply(5,2))

print(max([1,2,3]))

utility.py

def multiply(num1, num2):
    return num1*num2


def divide(num1, num2):
    return num1/num2

def max():
    return 'oops'

def multiply(num1, num2):

return num1*num2

def divide(num1, num2):

return num1/num2

def max():

return 'oops'

shopping_cart.py

def buy(*item):
    cart=[]
    cart.append(item)
    return cart

def buy(*item):

cart=[]

cart.append(item)

return cart

__name__:
Again example with names:

__name__

print(__name__)
#if __name__==’__main__’:

test.py:

from utility import multiply,divide
import utility
print(type(utility.st1))

#from utility import *
from shopping.more_shopping.shopping_cart import buy
if __name__=='__main__':
    print(buy('apple'))
    print(divide(5,2))
    print(multiply(5,2))
    print(max([1,2,3]))

#print(__name__)

   # print('please run this')

from utility import multiply,divide

import utility

print(type(utility.st1))

#from utility import *

from shopping.more_shopping.shopping_cart import buy

if __name__=='__main__':

print(buy('apple'))

print(divide(5,2))

print(multiply(5,2))

print(max([1,2,3]))

#print(__name__)

# print('please run this')

utility.py

def multiply(num1, num2):
    return num1*num2


def divide(num1, num2):
    return num1/num2

def max():
    return 'oops'

class Student():
    pass

st1=Student()
print(type(st1))

def multiply(num1, num2):

return num1*num2

def divide(num1, num2):

return num1/num2

def max():

return 'oops'

class Student():

pass

st1=Student()

print(type(st1))

Python Built in Modules:

In other language it is known as standard library.
You don’t need to remember all, just know it exists and google it when needful.

https://docs.python.org/3/py-modindex.html

import random

#print(random)
#help(random)
#print(dir(random.))

#print(random.randint(1, 10))
#print(random.choice([1,2,3,4,5,6]))
my_list=[1,2,3,4,5]
random.shuffle(my_list)
print(my_list)


from random import shuffle
#import random as oulala

my_list=[1,2,3,4,5]
shuffle(my_list)
print(my_list)

import random

#print(random)

#help(random)

#print(dir(random.))

#print(random.randint(1, 10))

#print(random.choice([1,2,3,4,5,6]))

my_list=[1,2,3,4,5]

random.shuffle(my_list)

print(my_list)

from random import shuffle

#import random as oulala

my_list=[1,2,3,4,5]

shuffle(my_list)

print(my_list)

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Posted in Python

B1.1

Posted on March 4, 2021 | Leave a comment

umgebung-Surroundings
empfahl-recommended

Ärger – trouble
Vergleichen – to compare
Diskussionsbeitrag – Contribution to the discussion
Verfassen – Compose
Krimis – Crime novels
Mögliche reaktionen im Gespräch – Possible reactions in conversation
Alltag – everyday life
Kursteilnehmern – Course participants
sammeln – collect
dauern – last
aufräumen – to clean up
zufrieden – satisfied
allgemeinen – general
bericht von markus – report from markus
redekteur – editor
Verlag – publishing company
ein paar minuten – a few minutes
Fahrstuhl – elevator
zuerst – first
teilnehmen – take part
besprechung – meeting
rede – meeting
lese – reading
sich mit freuden – each other with joy
weitergeleitet – forwarded
freundlicherweise – kindly
Tätigkeiten – activities
Aussagen – statement
Erstellen – Create
anschließend – subsequently
bestimmte – certain
Vertiefungsteil – Deepening part
Einbrecher – housebreaker
Lösen – housebreaker
Wasche – Laundry
gehören – belong

Hausaufgabe: Gerichtes aus meinem Heimatland vorbereiten

Ich habe vorbereitet eine bekannte Gerichtes aus meinem Heimatland. Diesem Gerichte heiße “Chicken Biriyani” ubersetzung “Hühnchen mit Reis” auf Deutsch. Diesem Gerichte brauchen Reis, Gewürze, Pfeffer, Öl und Hühnchen. Die interessent dinge ist es kann mit Lamm oder Rind auch kochen. Beginnen bis ende, Wir die Fleisch putzen und waschen denn klopfen und schneiden mit das Messer denn mischen mit Salz und Zucker mit Jogurt und Gewürze auch und denn mariniert für 30 minuten. Manchmal ein Kühlschrank kann hilfe für schneller mariniert . Im ende diesem Fleisch hat gekocht im Pfanne denn umrühren mit gekochter Reis. Diesem Gerichte schmeckt sehr liebste für mich.

17.03.21:

Ausgewählte Verben des Kapitels
berufleben
Überstunden
wieso?
Arbeitsinhalt
(abwechslungsreiche/
interessante Tätigkeit)
abwechslungsreiche
befristeter/
unbefristeter Arbeitsvertrag
Karrieremöglichkeiten
Contribution
wieso?
einig
einig
anschließend
Ich muss Protokolle schreiben
Fähigkeiten
Die Modalverben sind nach den Verben mit präpositionalem Objekt und dem Passiv das dritte grammatikalische Thema, das in der Klausur vorkommen wird.

Ich freue mich darauf, Sie morgen wiederzusehen!
die er in der eigenen Mitarbeitern mit Informationen muss er
Regel leitet
Entscheidungen
Mitarbeiter-fuhrung
unangenehm
auswerten
kernaufgabe
selten
Dienstreisen
Unangenehm
empfind
leiten
Notwendigkeit
Vorliebe
Absicht
ausnahme=EXCEPTION
Erlaubnis
bedienung
genauso
unbedingt
geduld
vorbei
neugierig, neugkeiten
schlage
berwegung
verschieben

18.03.21

Bescheid
ausrichten
deutlich
unterschied
vorbereitung

Subjekt: Einladung zu einer Präsentation vom mir über Bangladesch und es ist Politik und Wirstchaft.

Sehr geheerte Frau und Herr,

Hallo und guten Tag. Ich glaube Sie sind sehr gesund und machen gut. Ich habe eine Präsentation am 23 marz um 11 uhr im Zoom kanal aüber meine heimatland Bangladesch und es ist Politik und Handel mit andere landern. Die Prasentation hat diskutiert uber verschiedenen landern mit meine heimatland. Ich habe fokus über ein thema Wirtschaft aber es gibt etwa über andere verbunden themen auch diskutieren. Außerdem, ich habe bild über meistens thema für beste verstandnis beilagen.

Die ganze aufgabe wird dauern über 20 minuten. Es ist eine gutes Gelegenheit teilen über meine Heimatland, weil ich sehr interessiert fuehlen. Ich denke sie konnen mir vorschlage für themen schenken über Email auch. Ich anfrage Ihnen für treffen in diesem Prasentation und ich lade Ihnen ein für das. Ich wird freue mich, ob sie prasent im dieses ereigenis sind.

Silence!

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