Python Program to Check if a Number is Positive, Negative or 0
In this tutorial you will learn to write a simple Python Program to Check if a Number is Positive, Negative or 0
We can write this program by using if elif else and also by using nested if else statements.
Using if elif else statements
Python example program
1 # Python Program to Check if a Number is Positive, Negative or 0.
2
3 # Read Number from user
4 number = float(input("Enter a number: "))
5
6 # Check for Positive Number
7 if number > 0:
8 print("Number Entered is a Positive number")
9
10 #Check for Negative Number
11 elif number < 0:
12 print("Number Entered is a Negative number")
13
14 # if Number is not Positive and not Negative then it is 0
15 else:
16 print("Number Entered is Zero")Program Output : Run 1
Enter a number: 5
Number Entered is a Positive number
Program Output : Run 2
Enter a number: 0.001
Number Entered is a Positive number
Program Output : Run 3
Enter a number: -5
Number Entered is a Negative number
Program Output : Run 4
Enter a number: -0.00001
Number Entered is a Negative number
Program Output : Run 5
Enter a number: 0
Number Entered is Zero
Using nested if else statements
Python example program
1 # Python Program to Check if a Number is Positive, Negative or 0
2
3 # Read Number from user
4 number = float(input("Enter a number: "))
5
6 if number >= 0:
7 if number == 0:
8 print("Number Entered is Zero")
9 else:
10 print("Number Entered is a Positive number")
11 else:
12 print("Number Entered is a Negative number")Program Output : Run 1
Enter a number: 5
Number Entered is a Positive number
Program Output : Run 2
Enter a number: 0.0005
Number Entered is a Positive number
Program Output : Run 3
Enter a number: -6
Number Entered is a Negative number
Program Output : Run 4
Enter a number: -0.0004
Number Entered is a Negative number
Program Output : Run 5
Enter a number: 0
Number Entered is Zero