If Else Statement in Python with Use of Operators in Python

When you write code or programming in any language, mostly you have to use If Else statement with condition. So, Here SKOTechLearn describes the easy learning way about IF Else Statement in Python. And There are also description of Types of Operators in Python and How to use Operators in Python?

Basically, If Else statement work on true and false condition.

But, before we start , we understand, how this statement works in Python by given following flow chart.

Suppose, If we ask our friend with a cup of Tea, then how will this condition apply?

If ( <condition> ) :
<Statement>
else:
<Statement>

Now, IF Else statement require different types of Operators.

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Basically, in condition require “Comparison Operators” and “Logical Operators”.

Comparison Operators in Python :
Name	Details
==	Comparing Equal condition
!=	Comparing Not Equal
>	Comparing Value is Greater Than
<	Comparing Value is Less Than
>=	Comparing Value is Greater or Equal to
<=	Comparing Value is Less or Equal to
<>	Comparing Not Equal

Logical Operators in Python :
Name	Details
and	Statement with Two and more condition, and if all condition are true
or	Statement with Two or more condition, and if any one condition are true
not	Reverse condition if true then false and if false then true

How to Use Operators in Python?

Example of If Else Statement with Comparison Operators in Python:

 MyFstVl1 = 135
 MySecVl2 = 234

 #Condition1
 if ( MyFstVl1 == MySecVl2 ):
   print "Condition1 : MyFstVl1 is Equal to MySecVl2"
 else:
   print "Condition1 : MyFstVl1 is Not Equal to MySecVl2"


 #Condition2
 if ( MyFstVl1 != MySecVl2 ):
   print "Condition2 : MyFstVl1 is Not Equal to MySecVl2"
 else:
   print "Condition2 : MyFstVl1 is Equal to MySecVl2"


 #Condition3
 if ( MyFstVl1 <> MySecVl2 ):
   print "Condition3 : MyFstVl1 is Not Equal to MySecVl2"
 else:
   print "Condition3 : MyFstVl1 is Equal to MySecVl2"


 #Condition4
 if ( MyFstVl1 < MySecVl2 ):
   print "Condition4 : MyFstVl1 is Less than MySecVl2"
 else:
   print "Condition4 : MyFstVl1 is Greater than MySecVl2"


 #Condition5
 if ( MyFstVl1 > MySecVl2):
   print "Condition5 : MyFstVl1 is Greater than MySecVl2"
 else:
   print "Condition5 : MyFstVl1 is Less than MySecVl2"


 #Condition6   
 if ( MyFstVl1 <= MySecVl2):
   print "Condition6 : MyFstVl1 is Less than or equal to MySecVl2"
 else:
   print "Condition6 : MyFstVl1 is Not Less than or Not equal to MySecVl2"


 #Condition7
 if ( MyFstVl1 >= MySecVl2):
   print "Condition7 : MyFstVl1 is greater or equal to MySecVl2"
 else:
   print "Condition7 : MyFstVl1 is Not greater or Not equal to MySecVl2"

When you compile or run this script, the following output will be display:

 Condition1 : MyFstVl1 is Not Equal to MySecVl2

 Condition2 : MyFstVl1 is Not Equal to MySecVl2

 Condition3 : MyFstVl1 is Not Equal to MySecVl2

 Condition4 : MyFstVl1 is Less than MySecVl2

 Condition5 : MyFstVl1 is Less than MySecVl2

 Condition6 : MyFstVl1 is Less than or equal to MySecVl2

 Condition7 : MyFstVl1 is Not greater or Not equal to MySecVl2

IF Else with Comparision Operator in Python

IF Else Statement Example with Comparision Operator

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Example of IF Else Statement with Comparison Operators in Python:

 MyStr1 = "python"
 MyStr2 = "Learn"
 MyStr3 = "Programming"

 if ( MyStr1 == "python" and MyStr2 == "Learn" ):
   print "'And' Operator Output: " + MyStr1 + MyStr2
 else:
   print "'And' Operator Output: String Not Match"
   
 if ( MyStr1 == "python" or MyStr1 == "PYTHON" ):
   print "'Or' Operator Output: " + MyStr1
 else:
   print "'Or' Operator Output: String Not Found"
   
 if not ( MyStr3 == "python" or MyStr3 == "PYTHON" ):
   print "'Not' Operator Output: " + MyStr3 + " is not equal to python"
 else:
   print "'Not' Operator Output: " + MyStr3 + " is equal to python"

The following output will be display, when you run this python code:

 'And' Operator Output : pythonLearn

 'Or' Operator Output : python

 'Not' Operator Output : Programming is not equal to python

IF Else Statement with Logical Operator in Python

IF Else Statement Example with Logical Operator in Python

Nested If Else in python :

When you want to check condition and want to check another condition after previous condition, then we have to use Nested If Else. Let’s check following example:

 sk = 102
 if (sk < 500): 
    sk = sk % 2
    print ( sk )
    if (sk == 0): 
        print ( "sk is even" ) 
    if (sk > 100): 
        print ( "sk Greater than 100" ) 
    else: 
        print ( "sk Less than 100" )

Output:

 0

 sk is even

 sk Less than 100

If Else ladder in Python (if elif else):

There is following example of Ladder:

 Vl = 35
 if ( Vl == 12 ): 
     print ( "Vl equal to 12" ) 
 elif ( Vl == 18 ): 
     print ( "Vl equal to 18" ) 
 elif ( Vl == 35 ): 
     print ( "Vl equal to 35" ) 
 else: 
     print ( "Vl Not equal to any" )