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The Python String isdigit() method is used to check whether all characters of the string are digits or not. It returns true when all characters of the string are digits, else returns false. Digit characters belongs to numbers 0 - 9 and exponential format (example- 5²).

Syntax

string.isdigit()

Return Value

Returns True if all characters of the specified string are digit, else returns False.

Example:

In the below example, isdigit() method to used to check whether all characters of the string are digits or not.

MyString = "12345"
print(MyString.isdigit())

MyString = "5²"
print(MyString.isdigit())

The output of the above code will be:

True

True

Example:

In the below example, isdigit() method to used to check whether all characters of the unicode string object are digits or not.

MyString = "\u0035"        #unicode for 5
print(MyString.isdigit())

MyString = "\u0035\u00B2"  #unicode for 5²
print(MyString.isdigit())

The above code will give the following output:

True

True





❮ Python String Methods