Multiple spaces in a regular expression can make it hard to tell how many spaces should be matched. It’s more readable to use only one space and
then indicate with a quantifier how many spaces are expected.
Noncompliant code example
r"Hello, world!"
Compliant solution
r"Hello, {3}world!"
Exceptions
If the extended modifier re.X
or re.VERBOSE
is set, whitespaces are ignored. In this case no issue should be triggered,
because the whitespaces may be intended to improve readability.