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Does anyone have a good beginner resource guide to regular expressions in Python? I'm used to them in java. For example, in java I have some regular expressions that look like this:

PUNC_MATCH = "[\\d\\p{Punct}]+"
    PUNC_PREFIX = "^" + PUNC_MATCH
    PUNC_SUFFIX = PUNC_MATCH + "$"

Basically its supposed to see punctuation at the beginning or end of a word.
But in python I can't seem to find a reference for how to do this. I don't think its the same as it is in java is it?

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Last Post by ZZucker
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The Dive Into Python book has a great explanation/tutorial/exercises for the re module.

NOTE: It appears that diveintopython.org/ is down ?! I don't know what's going on over there but Google will help you find copies of the book elsewhere, if you're so inclined.

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According to docs, strip is supposed to remove all leading and trailing occurrences of characters. So if I t = 'abc123' then shouldn't t.strip('[a-z]') remove all of the leading characters a-z? It just removes the 'a'. Doing t.replace('[a-z]') doesn't do anything.

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Here is an example of re module's sub():

import re

# replace all ;,. characters with _
p = re.compile(r'[;,.]')
s = 'hi;your,face.is;on,fire'
print p.sub('_', s)  # hi_your_face_is_on_fire

or:

import re

s = 'abc123'

p = re.compile("[a-z A-Z]")
# subbing with an empty string "" amounts to strip
print p.sub("", s)  # 123
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