Python_Programming


What is Python?
Python is a popular programming language. It was created by Guido van Rossum, and released in 1991.

It is used for:
  • web development (server-side),
  • software development,
  • mathematics,
  • system scripting.
What can Python do?
  • Python can be used on a server to create web applications.
  • Python can be used alongside software to create workflows.
  • Python can connect to database systems. It can also read and modify files.
  • Python can be used to handle big data and perform complex mathematics.
  • Python can be used for rapid prototyping, or for production-ready software development.
Why Python?
  • Python works on different platforms (Windows, Mac, Linux, Raspberry Pi, etc).
  • Python has a simple syntax similar to the English language.
  • Python has syntax that allows developers to write programs with fewer lines than some other programming languages.
  • Python runs on an interpreter system, meaning that code can be executed as soon as it is written. This means that prototyping can be very quick.
  • Python can be treated in a procedural way, an object-orientated way or a functional way.
Python Syntax compared to other programming languages
  • Python was designed for readability, and has some similarities to the English language with influence from mathematics.
  • Python uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses.
  • Python relies on indentation, using whitespace, to define scope; such as the scope of loops, functions and classes. Other programming languages often use curly-brackets for this purpose.
Python Install
Many PCs and Macs will have python already installed.
To check if you have python installed on a Windows PC, search in the start bar for Python or run the following on the Command Line (cmd.exe):

C:\Users\Your Name>python --version

To check if you have python installed on a Linux or Mac, then on linux open the command line or on Mac open the Terminal and type:


python --version

If you find that you do not have python installed on your computer, then you can download it for free from the following website: https://www.python.org/

We can used, Pycharm software to run the python program.
https://www.jetbrains.com/pycharm


Python is an interpreted programming language, this means that as a developer you write Python (.py) files in a text editor and then put those files into the python interpreter to be executed.


The way to run a python file is like this on the command line:

C:\Users\Your Name>python helloworld.py

Where "helloworld.py" is the name of your python file.



x="hello world"
print(x)




output: hello world





























































Location:
India
















Comments











Post a Comment























Popular posts from this blog









Basic  Operators in Python





















   Operators   in Python        ·        Arithmetic operators        ·        Relational operators        ·        Logical operators        ·         Bitwise  operators        ·        Assignment   operators        ·        Special operators   Arithmetic operators:     Arithmetic operators are used to perform mathematical operations like addition, subtraction, multiplication and division.     Example:   x = 10   y = 4   # Addition of numbers   add = x + y   # Subtraction of numbers   sub = x - y   # Multiplication of number   mul = x * y   # Division(float) of number   div1 = x / y   # Division(floor) of number   div2 = x // y   # Modulo of both number   mod = x % y     # print results   print(add)    print(sub)   print(mul)   print(div1)   print(div2)   print(mod)   output:   14   6   40   2.5   2                            2     Relational Operators     It compares the values. It either returns  True or  False  according to the given condition.     Example:   a = 55   b = 33   # a &g








Read more





























 Python Data Types   List     In Python,  list   is  a  type  of container  in  Data Structures,   which  is  used to store multiple data at the same time.   Lists  in  Python can be created by just placing the sequence inside the square brackets[].    List  is  mutable           # Creating a List    List  =  []    print ( "Initial blank List: " )    print (List)    # Creating a List with    # the use of a String    List  =  [ 'hello world' ]    print ( " \n List with the use of String: " )    print (List)    # Creating a List with    # the use of multiple values    List  =  [ "hello" ,  "world" ,]    print ( " \n List containing multiple values: " )    print (List[ 0 ])    print (List[ 1 ])      #Creating a Multi-Dimensional List      #(By Nesting a list inside a List)    List  =  [[ 'hello' ,  'world' ] , [ 'hello' ]]    print ( " \n Multi-Dimensional List: " )    print (List)    # Creating a 








Read more










Python Conditions





















   Python Conditions and if Statements   Equals:  a == b  Not      Equals:  a != b  Less      than:  a < b  Less      than or equal to:  a <= b  Greater      than:  a > b  Greater      than or equal to:  a >= b    if Statements   If is a keyword for conditional statements.     Example:   a = 33   b = 200   if b > a:     print("b is greater than a")     Output:   b is greater than a     Example:   a = 33   b = 200   if b > a:   print("b is greater than a")     Output:   Error   *** Indentation Error     In case of other programming language, there is a curly brackets, but in python it is different, i.e. white space.     Elif statements     If the previous statements were not true, try this condition.      Example:   a = 33   b = 33   if b > a:     print("b is greater than a")   #this condition is not true.   elif a == b:     print("a and b are equal")     Output:                                                                 








Read more