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Merged revisions 72223 via svnmerge from

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........
  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.
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This commit is contained in:
Antoine Pitrou 2009-05-02 21:41:14 +00:00
parent 6fa98fb7ec
commit a9f48a0d4f
4 changed files with 42 additions and 2 deletions
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10
Lib/pickle.py
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@ -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)