Regular Expression : Bad Character Range
Frank Cui
ycui at outlook.com
Thu Dec 19 21:53:04 EST 2013
should have escaped hyphen as it could be used for ranging.
sorry for the bother...
From: ycui at outlook.com
To: python-list at python.org
Subject: Regular Expression : Bad Character Range
Date: Thu, 19 Dec 2013 23:50:52 -0300
Hey guys,
I'm trying to compile a regular Expression while encountering the following issue, any hints ?
is hyphen "-" or underscore "_" considered any meta character which is not allowed when putting into the range ?
Thanks
Frank
In [2]: re.compile("[\w-_]+>")
---------------------------------------------------------------------------
error Traceback (most recent call last)
/home/frank/<ipython-input-2-ee4b44c4d17a> in <module>()
----> 1 re.compile("[\w-_]+>")
/usr/lib/python2.7/re.pyc in compile(pattern, flags)
188 def compile(pattern, flags=0):
189 "Compile a regular expression pattern, returning a pattern object."
--> 190 return _compile(pattern, flags)
191
192 def purge():
/usr/lib/python2.7/re.pyc in _compile(*key)
240 p = sre_compile.compile(pattern, flags)
241 except error, v:
--> 242 raise error, v # invalid expression
243 if len(_cache) >= _MAXCACHE:
244 _cache.clear()
error: bad character range
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