Python · String methods

str.isalnum()

True when every character is a letter or digit and the string is not empty.

Syntax
text.isalnum()

Example

Open in the lab

More in this group

str.encode() str.expandtabs() str.format_map() str.isascii() str.isdecimal() str.isidentifier() str.islower() / isupper() str.isnumeric()

Learn this in the course

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.

Open the course