The string can be checked by checking for occurrences of only whitespace characters. We can check if a string contains only whitespace characters using 2 methods. First is using method isspace().
example
print('Hello world'.isspace())
print(' '.isspace())Output
False True
You can also use regexes for the same result. For matching only whitespace, we can call the re.match(regex, string) using the regex metacharacter \s as follows: "^\s*$".
example
import re
print(bool(re.match('^\s+$', ' abc')))
print(bool(re.match('^\s+$', ' ')))Output
False True