Regex string insertion

Question

Simple, simple question, hope you can help me:

How do I add a string to a regex? Say:

d = '\d\d\d'
mo = re.compile(r #d goes here)

Pasting it, separating it with a comma, or with a plus gives me errors. Normally, as you know, it would be re.compile(r'\d\d\d')

The `r` is just there to prevent certain escape sequences − you don't *need* it and can just type `re.compile(r)` or (perhaps better), `d = r'\d\d\d'` `re.compile(d)` ... Also [see this question](http://stackoverflow.com/q/2081640/660921). — Martin Tournoij, Mar 24 '16 at 06:17

score 0 · Answer 1 · answered Mar 24 '16 at 06:16

0

Is this what you are looking for?

d = r"\d\d\d"
re.compile(d)

answered Mar 24 '16 at 06:16

RootTwo

score 0 · Answer 2 · answered Mar 24 '16 at 07:59

0

Maybe more intuitive:

d = r"\d{3}"
# match a digit exactly three times, consecutively
re.compile(d)

answered Mar 24 '16 at 07:59

Jan

2 Answers2