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regex - Do Python regexes support something like Perl's G?

I have a Perl regular expression (shown here, though understanding the whole thing isn't hopefully necessary to answering this question) that contains the G metacharacter. I'd like to translate it into Python, but Python doesn't appear to support G. What can I do?

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Try these:

import re
re.sub()
re.findall()
re.finditer()

for example:

# Finds all words of length 3 or 4
s = "the quick brown fox jumped over the lazy dogs."
print re.findall(r'w{3,4}', s)

# prints ['the','fox','over','the','lazy','dogs']

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