Category Archives: Python

Python Course Zero to Mastery Started at Udemy

Posted on April 14, 2021 | Leave a comment

Python ususally uses interpreter. Compiler are 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

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Posted in Python

Programming Problem Solve with Python:

Posted on June 4, 2020 | Leave a comment

Problem: Only Positive Numbers

positiveFunc([-5,3,-1,101])

def positiveFunc(list_s):
  return [i for i in list_s if i>0]

1 2	def positiveFunc(list_s): return [i for i in list_s if i>0]

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Posted in Python

Pyhton as a new beginning

Posted on April 19, 2020 | Leave a comment

phone_numbers={"John Smith":"+37682","Marry Simpsons":"+42399"}
for pair in phone_numbers.items():
    print("{} has a phone number and it is {}".format(pair[0],pair[1]))

phone_numbers={"John Smith":"+37682","Marry Simpsons":"+42399"}

for pair in phone_numbers.items():

print("{} has a phone number and it is {}".format(pair[0],pair[1]))

Same output but the code is in diffrent approach.

phone_numbers={"John Smith":"+37682","Marry Simpsons":"+42399"}
for key,value in phone_numbers.items():
    print("{} has a phone number and it is {}".format(key, value))

phone_numbers={"John Smith":"+37682","Marry Simpsons":"+42399"}

for key,value in phone_numbers.items():

print("{} has a phone number and it is {}".format(key, value))

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Posted in Python

Loop Over Integer Colors

Posted on April 19, 2020 | Leave a comment

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]

for items in colors:
    if isinstance(items,int):
        print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]

for items in colors:

if isinstance(items,int):

print(items)

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Posted in Python

Python Course Started, Alhamdulillah

Posted on April 13, 2020 | Leave a comment

Summary: Integers, Floats, Lists, Dictionaries, Tuples, dir, help

In this section you learned that:

Integers are for representing whole numbers:

rank = 10
eggs = 12
people = 3

Floats represent continuous values:

temperature = 10.2
rainfall = 5.98
elevation = 1031.88

Strings represent any text:

message = “Welcome to our online shop!”
name = “John”
serial = “R001991981SW”

Lists represent arrays of values that may change during the course of the program:

members = [“Sim Soony”, “Marry Roundknee”, “Jack Corridor”]
pixel_values = [252, 251, 251, 253, 250, 248, 247]

Dictionaries represent pairs of keys and values:

phone_numbers = {“John Smith”: “+37682929928”, “Marry Simpons”: “+423998200919”}
volcano_elevations = {“Glacier Peak”: 3213.9, “Rainer”: 4392.1}

Keys of a dictionary can be extracted with:

phone_numbers.keys()

Values of a dictionary can be extracted with:

phone_numbers.values()

Tuples represent arrays of values that are not to be changed during the course of the program:

vowels = (‘a’, ‘e’, ‘i’, ‘o’, ‘u’)
one_digits = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)

To find out what attributes a type has:

dir(str)
dir(list)
dir(dict)

To find out what Python builtin functions there are:

dir(__builtins__)

Documentation for a Python command can be found with:

help(str)
help(str.replace)
help(dict.values)

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Posted in Python

Mission Machine Learning

Posted on November 12, 2019 | Leave a comment

Pagerank Algorithm Eigenvalue

Square Matrices

Geometric Interpretation

Eigenvalue:

https://www.khanacademy.org/math/linear-algebra/alternate-bases/eigen-everything/v/linear-algebra-introduction-to-eigenvalues-and-eigenvectors

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Posted in BigData, Data Science, Machine Learning, Natural Language Processing(NLP), Python, Research

For Loops in Python

Posted on November 12, 2019 | Leave a comment

monday_temperatures=[9.1,8.8,7.6]

# print(round(monday_temperatures[0]))
# print(round(monday_temperatures[1]))
# print(round(monday_temperatures[2]))

for temperatures in monday_temperatures:
    print(round(temperatures))
    print("done")


for letter in "Hello":
    print(letter.title())

monday_temperatures=[9.1,8.8,7.6]

# print(round(monday_temperatures[0]))

# print(round(monday_temperatures[1]))

# print(round(monday_temperatures[2]))

for temperatures in monday_temperatures:

print(round(temperatures))

print("done")

for letter in "Hello":

print(letter.title())

colors = [11, 34, 98, 43, 45, 54, 54]

for items in colors:
    if items>50:
        print(items)

colors = [11, 34, 98, 43, 45, 54, 54]

for items in colors:

if items>50:

print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]


for items in colors:
    
    if isinstance(items,int):
        if(items>50):
            print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]

for items in colors:

if isinstance(items,int):

if(items>50):

print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]


for items in colors:
    
    if isinstance(items,int):
        print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]

for items in colors:

if isinstance(items,int):

print(items)

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Posted in Python

Python String formatting

Posted on November 12, 2019 | Leave a comment

Playing With String in Function of Python

def takData(input_data):
   return ("Hi my name is: {}".format(input_data))



input_data=input("Enter your name: ")
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: {}".format(input_data))

input_data=input("Enter your name: ")

print(takData(input_data))

With First letter capital:

def takData(input_data):
   return ("Hi my name is: {}".format(input_data).title())


input_data=input("Enter your name: ")
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: {}".format(input_data).title())

input_data=input("Enter your name: ")

print(takData(input_data))

Converting string to int:

def takData(input_data):
   return ("Hi my name is: {}".format(input_data).title())



input_data=int(input("Enter your name: "))
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: {}".format(input_data).title())

input_data=int(input("Enter your name: "))

print(takData(input_data))

For Python 1 and 2

def takData(input_data):
   return ("Hi my name is: %s" %input_data.title())



input_data=(input("Enter your name: "))
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: %s" %input_data.title())

input_data=(input("Enter your name: "))

print(takData(input_data))

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Posted in Python

Python String Input Need To Clear From Internet

Posted on November 7, 2019 | Leave a comment

user_input=input("Enter your name: ")
#message="Hello %s" % user_input
message=f"Hello {user_input}"
print(message)

user_input=input("Enter your name: ")

#message="Hello %s" % user_input

message=f"Hello {user_input}"

print(message)

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Posted in Python

Python Function Calling

Posted on November 7, 2019 | Leave a comment

def mean(value):
    if type(value)==dict:
        the_mean=sum(value.values())/len(value.values())
    else:
        the_mean = sum(value) / len(value)
    return the_mean
monday_temperatures=(8.8,9.1,9.9)
student_grades={"Marry":9.1,"sim":8.8,"John":7.5}
print(mean(monday_temperatures))

def mean(value):

if type(value)==dict:

the_mean=sum(value.values())/len(value.values())

else:

the_mean = sum(value) / len(value)

return the_mean

monday_temperatures=(8.8,9.1,9.9)

student_grades={"Marry":9.1,"sim":8.8,"John":7.5}

print(mean(monday_temperatures))

def mean(value):
    if isinstance(value,dict):
        the_mean=sum(value.values())/len(value.values())
    else:
        the_mean = sum(value) / len(value)
    return the_mean
monday_temperatures=(8.8,9.1,9.9)
student_grades={"Marry":9.1,"sim":8.8,"John":7.5}
print(mean(monday_temperatures))

def mean(value):

if isinstance(value,dict):

the_mean=sum(value.values())/len(value.values())

else:

the_mean = sum(value) / len(value)

return the_mean

monday_temperatures=(8.8,9.1,9.9)

student_grades={"Marry":9.1,"sim":8.8,"John":7.5}

print(mean(monday_temperatures))

def foo(x, array):
    if x in array:
        return True
    else:
        return False


print(foo("z", ["a", "b", "z"]))
print(foo(1, [2, 3]))
print(foo(1, ['1', 2, 3]))

def foo(x, array):

if x in array:

return True

else:

return False

print(foo("z", ["a", "b", "z"]))

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

print(foo(1, ['1', 2, 3]))

def inTake(value):
    length = len(value)
    if length < 8:
        return False
    else:
        return True


print(inTake("mylongspass"))

def inTake(value):

length = len(value)

if length < 8:

return False

else:

return True

print(inTake("mylongspass"))

def inTake(value):
    if value > 25 :
        return "hot"
    elif value>=15 and value<=25:
        return "warm"
    else:
        return "Cold"


print(inTake(20))

def inTake(value):

if value > 25 :

return "hot"

elif value>=15 and value<=25:

return "warm"

else:

return "Cold"

print(inTake(20))

def inTake(value):
    if value > 25 :
        return "hot"
    elif value>=15 and value<=25:
        return "warm"
    else:
        return "Cold"

inputdigit=float(input("enter temperature="))

print(inTake(inputdigit))

print(type(inputdigit),inputdigit)

def inTake(value):

if value > 25 :

return "hot"

elif value>=15 and value<=25:

return "warm"

else:

return "Cold"

inputdigit=float(input("enter temperature="))

print(inTake(inputdigit))

print(type(inputdigit),inputdigit)

Check if a value is of a certain type with:

isinstance(“abc”, str)
isinstance([1, 2, 3], list)

type(“abc”) == str
type([1, 2, 3]) == lst

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Posted in Python

Python Function

Posted on November 3, 2019 | Leave a comment

def area(a):
    the_area=a*a
    return the_area

print(area(7))

def area(a):

the_area=a*a

return the_area

print(area(7))

def foo(value):
    fluid=value*29.57353
    return fluid


print(foo(5))

def foo(value):

fluid=value*29.57353

return fluid

print(foo(5))

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Posted in Python

Positive/Negative Indexes, Slicing of Tuples

Posted on November 3, 2019 | Leave a comment

Summary for python learning: Positive/Negative Indexes, Slicing:

Lists, strings, and tuples have a positive index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
   0      1      2      3      4      5      6
And a negative index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
  -7     -6     -5     -4     -3     -2     -1
In a list, the 2nd, 3rd, and 4th items can be accessed with:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[1:4]
Output: ['Tue', 'Wed', 'Thu']
First three items of a list:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[:3]
Output:['Mon', 'Tue', 'Wed'] 
Last three items of a list:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[-3:]
Output: ['Fri', 'Sat', 'Sun']
Everything but the last:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[:-1] 
Output: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'] 
Everything but the last two:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[:-2] 
Output: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri'] 
A single in a dictionary can be accessed using its key:

phone_numbers = {"John Smith":"+37682929928","Marry Simpons":"+423998200919"}
phone_numbers["Marry Simpsons"]
Output: '+423998200919'

Summary for python learning: Positive/Negative Indexes, Slicing:

Lists, strings, and tuples have a positive index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]

0 1 2 3 4 5 6

And a negative index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]

-7 -6 -5 -4 -3 -2 -1

In a list, the 2nd, 3rd, and 4th items can be accessed with: