Python 3 - Decision Making

Shery Dsouza

13 days ago

Python Decision Making | Insideaiml
Python Decision Making | Insideaiml
Decision-making is the conditional choice. The block of code is executed based on the condition. If the condition is not satisfied then the next condition is executed.
In Decision-making conditional expression produce "TRUE" or "FALSE" result. If the result is TRUE first statement is executed and if the result is FALSE second statement is executed.
Python Decision-Making Structure
Decision-Making Structure | insideaiml
Decision-Making Structure | insideaiml
  • In decision-making zero or null values consider as FALSE and non-zero or non-null values consider as TRUE.
  • In the Python programming language, there are various types of choice-making statements.
You can use one if or else if statement or use can use if-elif ladder .
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Decision making statements 

if Statement 

It is a single-line and simple statement.
Example : 

value = 1000
if ( value == 1000 ) :
    print ("Value of expression is 1000")

Output :
Value of expression is 1000

if-else statement

The if-else statement checks the condition . If result is TRUE then execute if block otherwise execute else block.
Example : 
no1 = 10
no2 = 50
if(no1 >= no2 ):
  print(“ No 1 is greater than No 2”)
  print(“No 2 is greater than No 1”)
Output :
No 2 is greater than No 1

if-elif ladder

The elif statement check multiple conditions.It execute the condition if one of  the result is TRUE.
Example :
value1 = 10
value2 = 10

if value1 > value2:
   print("value1 is greater")
elif value1 == value2:
   print("both are equal")
   print("value2 is greater")
Output :
both are equal
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