Python String isalnum() Method
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Python String isalnum()
The isalnum()
method checks whether all the characters of the string are alphanumeric or not.
In python, alphanumeric is a sequence of characters which consists of either alphabets (a-z or A-Z) or numbers (0 - 9).
Note: This method does not allow special characters: (space)!#%&? etc.
Example
Python Compiler
str1 = "python"
str2 = "123"
str3 = "python 123"
str4 = "python123"
print(str1.isalnum()) # True
print(str2.isalnum()) # True
print(str3.isalnum()) # False
print(str4.isalnum()) # True
Output
True
True
False
True
Syntax
txt.isalnum()
Parameter Values
It does not take any parameter.
Return Value
Value | Explanation |
---|---|
True | If this string is an alphanumeric. |
False | If this string is not an alphanumeric. |
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