# Python String isdecimal() Method

By Lenin Mishra

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##### Python String `isdecimal()` method

The `isdecimal()` method in Python returns True if all the characters in the string are decimal characters. For empty strings, it returns False.

##### What are Decimal characters?

Any character that can be used to form a number in base 10, is a decimal character.

Example:- 1. All numbers from 0 to 9 2. All numbers from 0 to 9 in various languages like Arabic Indic, Devnagri etc.

You can find all the decimal characters in Unicode General Category Nd.

##### Syntax of `isdecimal()` method
``````string.isdecimal()

Returns True or False``````
##### Example

Code/Output

``````s = "1992"
print(s.isdecimal())
>>> True

# Floating point number
s = "1992.10"
print(s.isdecimal())
>>> False

# contains alphabets
s = "Pylenin1992"
print(s.isdecimal())
>>> False

# contains alphabets and spaces
s = "Pylenin loves Python"
print(s.isdecimal())
>>> False

# Empty string
s = ''
print(s.isdecimal())
>>> False

# superscripts
s = '1992\u00B2'
print(s)
print(s.isdecimal())
>>> 1992 ^ 2
>>> False

# fractions
s = '\u00BD'
print(s)
print(s.isdecimal())
>>> 1/2
>>> False``````
##### Difference between `isdigit()` and `isdecimal()`

Difference between the above methods crop up with various unicode characters, such as superscripts:

``````# superscripts
s = '2345\u00B2'
print(s)

print(s.isdecimal())
print(s.isdigit())``````

Output

``````2345^2
False #isdecimal()
True #isdigit()``````

Check out other commonly used Python string methods.