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In this post, we're gonna learn how to write the different types of IF Conditions in Python.

if conditions


Before we getting started, let's first know more about Conditions

What're Conditions?

  • Conditions are a decision-making statement.
  • Perform different actions depending on a boolean condition that may be true or false.

Conditions In Python

  • If statement: is used to specify a block of code to be executed, if a specified condition is true.
  • If - else statement: is used to specify a new condition to test, if the first condition is false then it will be redirected to the else part
  • ELIF Statement: The elif keyword in pythons is the way of saying "if the previous conditions were not true, then try this condition".

Python If Statement

  • Python if statement is the easiest way to have a decision.
  • Use the if statement to specify a block of Python code to be executed if a condition is True.
  • It must end with a colon (:)
  • (white space at the beginning of a line) to define the scope in the code

 syntax :

if condition  
  #block of code to be executed if the condition is True
example:

Python if condition

output :

b is greater than a

Python (If–else) Statement

  • It is used when you want to choose between two alternatives.
  • An if statement can be followed by an optional else statement, which executes when the first condition is FALSE.
  • (white space at the beginning of a line) to define the scope in the code of if and else

syntax 

if condition
  #block of code to be executed if the condition is True
else 
  # block of code to be executed if the condition is False

Example

if-else in python

Python Elif statement

  • The elif keyword in pythons is the way of saying "if the previous conditions were not true, then try this condition". 
  • Also, make sure that the white space at the beginning of a line is to define the scope in the code of if and Elif.

 syntax 

if condition
#block of code to be executed if the condition is True
Elif condition
# block of code to be executed if the condition is False
Elif condition
# block of code to be executed if the condition is False
.
.
.

Example

elif statement in python

Nested If Statement

you can place an (if statement / if..else statement / if..elif statement) inside another statement and this called "nested"

syntax

if condition:
if condition:
  statements
else:
  statements
else:
statements

Conclusion

In this post, we have learned how to write different Conditions in the Python programming language.

See Also


If you don’t ask, the answer is always NO!
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