[ python-Bugs-1228015 ] cPickle and pickle dump bug (inf float)
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Mon Jun 27 12:22:11 CEST 2005
Bugs item #1228015, was opened at 2005-06-27 05:30
Message generated for change (Comment added) made by mwh
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Category: Extension Modules
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Andrea Bolzonella (bolzonella)
>Assigned to: Michael Hudson (mwh)
Summary: cPickle and pickle dump bug (inf float)
Initial Comment:
An "inf float" can't be dumped in binary form.
Python 2.4.1 (#1, Jun 10 2005, 16:30:55)
[GCC 3.3.3 (SuSE Linux)] on linux2
Type "help", "copyright", "credits" or "license" for more
information.
>>> import pickle
>>> import cPickle
>>> pickle.dumps (10e5000)
'Finf\n.'
>>> pickle.dumps (10e5000, pickle.HIGHEST_PROTOCOL)
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/home/bolz/DLD/lib/python2.4/pickle.py", line 1386, in
dumps
Pickler(file, protocol, bin).dump(obj)
File "/home/bolz/DLD/lib/python2.4/pickle.py", line 231, in
dump
self.save(obj)
File "/home/bolz/DLD/lib/python2.4/pickle.py", line 293, in
save
f(self, obj) # Call unbound method with explicit self
File "/home/bolz/DLD/lib/python2.4/pickle.py", line 489, in
save_float
self.write(BINFLOAT + pack('>d', obj))
SystemError: frexp() result out of range
>>>
----------------------------------------------------------------------
>Comment By: Michael Hudson (mwh)
Date: 2005-06-27 11:22
Message:
Logged In: YES
user_id=6656
Why has this suddenly become a common bug report?
Anyway, this should work in CVS HEAD (please test!). The changes are
unlikely to be backported to the 2.4 branch.
----------------------------------------------------------------------
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