Check if string contains only whitespace
python, text, whitespace
Solution
Use the `str.isspace()` method:
Return `True` if there are only whitespace characters in the string and there is at least one character, `False` otherwise.
A character is whitespace if in the Unicode character database (see unicodedata), either its general category is Zs (“Separator, space”), or its bidirectional class is one of WS, B, or S.
Combine that with a special case for handling the empty string.
Alternatively, you could use `str.strip()` and check if the result is empty.
Problem
How can I test if a string contains only whitespace? Example strings: `" "` (space, space, space) `" \t \n "` (space, tab, space, newline, space) `"\n\n\n\t\n"` (newline, newline, newline, tab, newline)