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Python isdigit

by suresh

Python isdigit is one of the Python String Method which is used check whether the character is digit or not. In this article we will show you, How to write isdigit Function in Python Programming with example.

Python isdigit Syntax

The basic syntax of is digit in Python function is as shown below:

String_Value.isdigit()
  • String_Value: Please select a valid String literal.

isdigit function will return a Boolean value as output.

  • If the String_Value is a valid digit then it will return TRUE
  • If the String_Value is not a valid digit then the function will return FALSE

Program to Check for Digit using Python isdigit function

The following set of examples will help you understand the isdigit function and how to use it.

# Python isdigit Method Example

Str1 = '123456789';
print('First Output of a isdigit() method is = ', Str1.isdigit())

Str2 = '     ';
print('Output of a isdigit() method For Empty Space is = ', Str2.isdigit())

# Performing isdigit() function directly
Str3 = 'Find Tutorial at Tutorial Gateway'.isdigit()
print('Second Output of a isdigit() method is = ', Str3)

# Performing isdigit() on both Digits and Alphabets
Str5 = '123456789a'.isdigit()
print('Third Output of a isdigit() method is = ', Str5)

# Performing isdigit() on Float values
Str6 = '1234.67'.isdigit()
print('Fourth Output of a isdigit() method is = ', Str6)

# Performing isdigit() on Negative Values  
Str7 = '-1234'.isdigit()
print('Fifth Output of a isdigit() method is = ', Str7)

OUTPUT

Python IsDigit Function 1

ANALYSIS

First we declared the String variable Str1 and assigned corresponding value (Integer Value) using following statement. Next, we used the isdigit() function to check whether the string is digit or not. As you can see, it is a valid digit so, function will return TRUE

Str1 = '123456789';
print('First Output of a isdigit() method is = ', Str1.isdigit())

The following statement will check whether the Empty space is a valid digit or not

Str2 = '     ';
print('Output of a isdigit() method For Empty Space is = ', Str2.isdigit())

Next, we are using the isdigit function in python on group of words

Str3 = 'Find Tutorial at Tutorial Gateway'.isdigit()
print('Second Output of a isdigit() method is = ', Str3)

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