changeset:   92626:565096a32ce4
parent:      92624:3d924bbfdcbc
user:        Serhiy Storchaka <storchaka@gmail.com>
date:        Mon Sep 29 18:13:02 2014 +0300
files:       Lib/re.py
description:
Issue #22510: Get rid of little overhead of testing re.DEBUG flag.


diff -r 3d924bbfdcbc -r 565096a32ce4 Lib/re.py
--- a/Lib/re.py	Mon Sep 29 10:19:20 2014 -0400
+++ b/Lib/re.py	Mon Sep 29 18:13:02 2014 +0300
@@ -273,12 +273,10 @@
 _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 @@
     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