bpo-30215: Make re.compile() locale agnostic. (#1361)
Compiled regular expression objects with the re.LOCALE flag no longer
depend on the locale at compile time. Only the locale at matching
time affects the result of matching.
diff --git a/Lib/re.py b/Lib/re.py
index 7053edd..d0ee5db 100644
--- a/Lib/re.py
+++ b/Lib/re.py
@@ -268,9 +268,7 @@
def _compile(pattern, flags):
# internal: compile pattern
try:
- p, loc = _cache[type(pattern), pattern, flags]
- if loc is None or loc == _locale.setlocale(_locale.LC_CTYPE):
- return p
+ return _cache[type(pattern), pattern, flags]
except KeyError:
pass
if isinstance(pattern, _pattern_type):
@@ -284,13 +282,7 @@
if not (flags & DEBUG):
if len(_cache) >= _MAXCACHE:
_cache.clear()
- if p.flags & LOCALE:
- if not _locale:
- return p
- loc = _locale.setlocale(_locale.LC_CTYPE)
- else:
- loc = None
- _cache[type(pattern), pattern, flags] = p, loc
+ _cache[type(pattern), pattern, flags] = p
return p
@functools.lru_cache(_MAXCACHE)