[Zope3-checkins] CVS: Zope3/lib/python/Persistence - Module.py:1.31

[Jeremy Hylton]

Update of /cvs-repository/Zope3/lib/python/Persistence
In directory cvs.zope.org:/tmp/cvs-serv27986

Modified Files:
	Module.py 
Log Message:
If persistent modules are enabled, also make regular modules picklable.


=== Zope3/lib/python/Persistence/Module.py 1.30 => 1.31 ===
--- Zope3/lib/python/Persistence/Module.py:1.30	Thu Oct 10 17:36:18 2002
+++ Zope3/lib/python/Persistence/Module.py	Thu Oct 10 18:26:05 2002
@@ -33,6 +33,23 @@
 # builtins are explicitly assigned when a module is unpickled
 import __builtin__
 
+# Modules aren't picklable by default, but we'd like them to be
+# pickled just like classes (by name).
+import copy_reg
+
+def _pickle_module(mod):
+    return mod.__name__
+
+def _unpickle_module(modname):
+    mod = __import__(modname)
+    if "." in modname:
+        parts = modname.split(".")[1:]
+        for part in parts:
+            mod = getattr(mod, part)
+    return mod
+
+copy_reg.pickle(type(copy_reg), _pickle_module, _unpickle_module)
+
 # XXX Is this comment still relevant?
 #
 # There seems to be something seriously wrong with a module pickle