Bug #1675967: re patterns pickled with older Python versions can
now be unpickled.
(backport form rev. 54492)
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py
index 14a0acf..a885180 100644
--- a/Lib/test/test_re.py
+++ b/Lib/test/test_re.py
@@ -414,6 +414,15 @@
self.pickle_test(pickle)
import cPickle
self.pickle_test(cPickle)
+ # old pickles expect the _compile() reconstructor in sre module
+ import warnings
+ original_filters = warnings.filters[:]
+ try:
+ warnings.filterwarnings("ignore", "The sre module is deprecated",
+ DeprecationWarning)
+ from sre import _compile
+ finally:
+ warnings.filters = original_filters
def pickle_test(self, pickle):
oldpat = re.compile('a(?:b|(c|e){1,2}?|d)+?(.)')