Whitespace Trim (Leading & Trailing) in PY
Match leading and/or trailing whitespace on a string — the regex equivalent of .trim().
Try it in the PY tester →Pattern
regexPY
^\s+|\s+$ (flags: g)Python (re) code
pyPython
import re
pattern = re.compile(r"^\s+|\s+$")
input_text = " hello world "
for m in pattern.finditer(input_text):
print(m.group(0))Stdlib `re` module — no third-party dependency. Works on Python 3.6+.
How the pattern works
^\s+ matches one or more whitespace characters at the start of the string. \s+$ matches one or more whitespace characters at the end. The alternation | with the g flag allows replacing both in a single pass.
Examples
Input
hello world Matches
Input
tabbed Matches
Input
no paddingNo match
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