Python has two different versions; python 2 and python 3. In this tutorial, everything will be discussed according to the python 3 version.
=========================================================================
Hello, World!
To print a string in python:
print("Hello, World!")
=========================================================================
Python Indentation
Indentation refers to the spaces at the beginning of a code line.
if a > b:
print("a is greater than b") ###This syntax is right
if a > b:
print("a is greater than b") ###This is wrong syntax
"#" this sign is used in python as a comment when line by line has checked, the comment part has automatically skipped.
=========================================================================
Variables
variables are created when you assign a value to it. These variables are used to store the data. Points to be remembered:
1. Variables name can only be started with letter or underscore
2. Variable names are case-sensitive
3. A variable name cannot start with a number
4. Except alphanumeric, "_" can be used for giving the name of a variable
---------------------------------------------------------------------------------------------------------------------------
y = "How are you?"
X1 = 25
mean_age = 30
--------------------------------------------------------------------------------
In an one-line you can assign values for multiple variables:
x, y, z = 5, "kolkata", 7.0
--------------------------------------------------------------------------------
x = "love"
print("I" + x +"Python")
--------------------------------------------------------------------------------
x = "Don't be "
y = "afraid"
z = x + y
print(z)
--------------------------------------------------------------------------------
