isalnum

Description

Returns a Boolean stating whether the string contains only letters and digits.

Syntax

str. isalnum()

Return Value

bool

Time Complexity

#TODO

Remarks

For 8-bit strings, this method is locale-dependent. Returns False if string is empty.

Example

>>> ''.isalnum()
False
>>> 'abc123'.isalnum()
True
>>> 'abc'.isalnum()
True
>>> '123'.isalnum()
True
>>> 'Abc'.isalnum()
True
>>> '!@#'.isalnum()
False
>>> '   '.isalnum()
False
>>> 'ABC'.isalnum()
True