Bugs item #1233578, was opened at 2005-07-06 17:03
Message generated for change (Comment added) made by mwh
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1233578&group_id=5470
Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Python Library
Group: Python 2.4
>Status: Closed
>Resolution: Out of Date
Priority: 5
Submitted By: Charles (melicertes)
>Assigned to: Michael Hudson (mwh)
Summary: Pickle protocols 1, 2 can't handle "inf" floats.
Initial Comment:
Python 2.4.1 on an AMD64 system. The pickle module
barfs with a "SystemError: frexp() result out of range"
if an "inf" float value is pickled with pickle protocol
1 or 2. It works fine with the old protocol 0.
Minimal test case:
>>> import pickle
>>> o = 2e308
>>> print o
inf
>>> pickle.dumps(o, protocol=0)
'Finf\n.'
>>>
>>> pickle.dumps(o, protocol=1)
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.4/pickle.py", line 1386, in dumps
Pickler(file, protocol, bin).dump(obj)
File "/usr/lib/python2.4/pickle.py", line 231, in dump
self.save(obj)
File "/usr/lib/python2.4/pickle.py", line 293, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.4/pickle.py", line 489, in
save_float
self.write(BINFLOAT + pack('>d', obj))
SystemError: frexp() result out of range
>>>
>>> pickle.dumps(o, protocol=2)
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.4/pickle.py", line 1386, in dumps
Pickler(file, protocol, bin).dump(obj)
File "/usr/lib/python2.4/pickle.py", line 231, in dump
self.save(obj)
File "/usr/lib/python2.4/pickle.py", line 293, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/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: 2005-07-06 17:06
Message:
Logged In: YES
user_id=6656
This is fixed in CVS.
(And also the third time I've closed this bug in the last
fortnight! FFS guys!)
----------------------------------------------------------------------
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1233578&group_id=5470
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
