Python String isspace() Function

The String isspace() method returns True if the string is not empty and all characters are whitespace characters. Otherwise, it returns False.

Syntax

my_string.isspace()

isspace() Parameters

Python String isspace() function does not take any parameters.

isspace() Return Value

Python String isspace() function returns:

• True if all characters in the string are whitespace characters.
• False if the string contains at least one non-whitespace character or if the string is empty.

Examples

Example 1: Check if a String contains all whitespaces with isspace()

The isspace() method returns True if all characters in the string are whitespace characters.

my_str = '    '

print(my_str.isspace()) # Output: True

output

True

The isspace() method returns False if the string contains at least one non-whitespace character.

my_str = '   a'

print(my_str.isspace()) # Output: False

output

False

Example 2: Check if an Empty String contains whitespace with isspace()

The isspace() method returns False if string is empty.

my_str = ''

print(my_str.isspace()) # Output: False

output

False

What characters are Whitespaces?

The most common whitespace characters are space , tab \t , and newline \n, but also Carriage Return \r and ASCII Form Feed \f are considered as whitespace characters.

Moreover, some Unicode characters qualify as whitespace:

Unicode Character	Description
U+0020	Space
U+00A0	No-Break Space
U+1680	Ogham Space Mark
U+2000	En Quad
U+2001	Em Quad
U+2002	En Space
U+2003	Em Space
U+2004	Three-Per-Em Space
U+2005	Four-Per-Em Space
U+2006	Six-Per-Em Space
U+2007	Figure Space
U+2008	Punctuation Space
U+2009	Thin Space
U+200A	Hair Space
U+202F	Narrow No-Break Space
U+205F	Medium Mathematical Space
U+3000	Ideographic Space

Some examples:

my_str1 = ' \t \n \r \f '
my_str2 = '\u2005 \u2007'

print(my_str1.isspace()) # Output: True
print(my_str2.isspace()) # Output: True

output

True
True