New submission from Rex Dwyer:

I would like to split a DNA sequence with a restriction enzyme.
A description enzyme can be describe as, e.g.  r'(?<CA)(?=GCTG)'
I cannot get re.split to split on this pattern as perl 5 does.

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components: Regular Expressions
messages: 230831
nosy: ezio.melotti, mrabarnett, rexdwyer
priority: normal
severity: normal
status: open
title: re.split fails with lookahead/behind
type: behavior
versions: Python 3.4

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22817>
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