Python String isdecimal() Method

Description

The isdecimal() method checks whether all characters in a string are decimal characters. All digits 0-9 and their Unicode representations are considered decimal characters.

Syntax

var.isdecimal()

Parameters

None

Return Value

This method returns true if all characters in the string are decimal characters. Otherwise, it returns false.

Example

The following example demonstrates the use of the isdecimal() method.

var = "123"
var1 = var.isdecimal()
print ("Original string:", var)
print ("Only decimal characters?:", var1)

var = "u0031u0032u0033"
var2 = var.isdecimal()
print ("Original string:", var)
print ("Only decimal characters?:", var2)

var = "123.34"
var3 = var.isdecimal()
print ("Original string:", var)
print ("Only decimal characters?:", var3)

When you run this program, it will produce the following output −

Original string: 123
Only decimal characters? : True
Original string: 123
Decimal characters only? : True
Original string: 123.34
Decimal characters only? : False

Here, 0031 is the Unicode encoding for the character “1”, 0032 is the Unicode encoding for the character “2”, and 0033 is the Unicode encoding for the character “3”.