DeprecationWarning: invalid escape sequence - what to use instead of \d?

Question

I\'ve met a problem with re module in Python 3.6.5. I have this pattern in my regular expression:

\'\\\\nRevision: (\\d+)\\\\n\'

Answer 1

Python 3 interprets string literals as Unicode strings, and therefore your \d is treated as an escaped Unicode character.

Declare your RegEx pattern as a raw string instead by prepending r, as below:

r'\nRevision: (\d+)\n'

This also means you can drop the escapes for \n as well since these will just be parsed as newline characters by re.