diff -r a4752c32cc79 Lib/re.py --- a/Lib/re.py Sun Sep 28 15:36:18 2014 +0300 +++ b/Lib/re.py Sun Sep 28 16:39:29 2014 +0300 @@ -273,12 +273,10 @@ def escape(pattern): _MAXCACHE = 512 def _compile(pattern, flags): # internal: compile pattern - bypass_cache = flags & DEBUG - if not bypass_cache: - try: - return _cache[type(pattern), pattern, flags] - except KeyError: - pass + try: + return _cache[type(pattern), pattern, flags] + except KeyError: + pass if isinstance(pattern, _pattern_type): if flags: raise ValueError( @@ -287,7 +285,7 @@ def _compile(pattern, flags): if not sre_compile.isstring(pattern): raise TypeError("first argument must be string or compiled pattern") p = sre_compile.compile(pattern, flags) - if not bypass_cache: + if not (flags & DEBUG): if len(_cache) >= _MAXCACHE: _cache.clear() _cache[type(pattern), pattern, flags] = p