From a9f48a0d4f0bad22275b5feb78f63a8a8f00a6f8 Mon Sep 17 00:00:00 2001 From: Antoine Pitrou Date: Sat, 2 May 2009 21:41:14 +0000 Subject: Merged revisions 72223 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r72223 | antoine.pitrou | 2009-05-02 23:13:23 +0200 (sam., 02 mai 2009) | 5 lines Isue #5084: unpickling now interns the attribute names of pickled objects, saving memory and avoiding growth in size of subsequent pickles. Proposal and original patch by Jake McGuire. ........ --- Lib/pickle.py | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'Lib/pickle.py') diff --git a/Lib/pickle.py b/Lib/pickle.py index 409d4b2a1a..b94b3058cd 100644 --- a/Lib/pickle.py +++ b/Lib/pickle.py @@ -1195,7 +1195,15 @@ class _Unpickler: if isinstance(state, tuple) and len(state) == 2: state, slotstate = state if state: - inst.__dict__.update(state) + d = inst.__dict__ + intern = sys.intern + try: + for k, v in state.items(): + d[intern(k)] = v + # keys in state don't have to be strings + # don't blow up, but don't go out of our way + except TypeError: + d.update(state) if slotstate: for k, v in slotstate.items(): setattr(inst, k, v) -- cgit v1.2.1