Bug #1675967: re patterns pickled with older Python versions can
now be unpickled.
(backport form rev. 54492)
diff --git a/Lib/sre.py b/Lib/sre.py
index 390094a..c04576b 100644
--- a/Lib/sre.py
+++ b/Lib/sre.py
@@ -8,3 +8,6 @@
from re import *
from re import __all__
+
+# old pickles expect the _compile() reconstructor in this module
+from re import _compile
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)+?(.)')
diff --git a/Misc/NEWS b/Misc/NEWS
index 19b8f1c..e526ac3 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -217,6 +217,9 @@
Library
-------
+- Bug #1675967: re patterns pickled with Python 2.4 and earlier can
+ now be unpickled with Python 2.5.
+
- Bug #1684254: webbrowser now uses shlex to split any command lines
given to get(). It also detects when you use '&' as the last argument
and creates a BackgroundBrowser then.