python regex substitution with backreferences, don't forget to escape! | dgtlmoon

python regex substitution with backreferences, don't forget to escape!

Submitted by dgtlmoon on Thu, 2010-01-14 11:37.

python
tech

amount = re.sub(r'\.(\d)0$', '.\1', amount)

wont work but...

amount = re.sub(r'\.(\d)0$', '.\\1', amount)

will!