In python3, how do I match exactly whitespace character and not newline \\n or tab \\t?
I\'ve seen the \\s+[^\\n] answer from Regex match space not \\
\\s+[^\\n]
No need for special groups. Just create a regex with a space character. The space character does not have any special meaning, it just means "match a space".
RE = re.compile(' +')
So for your case
a='rasd\nsa sd' print(re.search(' +', a))
would give
<_sre.SRE_Match object; span=(7, 8), match=' '>