Regex not working normally in python

Question

I have this pattern: "(\?(.+?))\b". In python, what should happen, is findall should return ("?var", "var") if i run it on the string: "some text ?var etc".

It works normally elsewhere, here's a regexr for proof.

In python, re's findall returns an empty list. Why is that?

I believe the re module documentation starts off by explaining how to solve your problem. — user2357112
– user2357112, Commented Apr 18, 2015 at 5:33

hwnd · Accepted Answer · 2015-04-18 05:50:30Z

2

You're not using raw string notation:

>>> import re
>>> re.findall(r'(\?(.+?))\b', 'some text ?var etc')
[('?var', 'var')]

edited Apr 18, 2015 at 5:50

answered Apr 18, 2015 at 5:33

hwnd

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2 Comments

Peaser Over a year ago

Yours works, but why does re.findall("(#{(.+?)})", "example #{findme}") work without raw string notation?

hwnd Over a year ago

Because there are no escape sequences.

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