Pickled text file causing ValueError (dos/unix issue)
akineko at pacbell.net
Fri Jan 14 01:00:10 EST 2005
I started to use pickle to store the latest user settings for the tool
I wrote. It writes out a pickled text file when it terminates and it
restores the settings when it starts.
It worked very nicely.
However, I got a ValueError when I started the tool from Unix when I
previously used the tool from Windows.
File "/usr/local/lib/python2.3/pickle.py", line 980, in load_string
raise ValueError, "insecure string pickle"
ValueError: insecure string pickle
If I do 'dos2unix <my.cfg> <my.cfg>' to convert the file, then
I found in the Python release note saying ...
"pickle: Now raises ValueError when an invalid pickle that contains a
non-string repr where a string repr was expected. This behavior matches
I guess DOS text format is creating this problem.
My question is "Is there any elegant way to deal with this?".
I certainly can catch ValueError and run 'dos2unix' explicitly.
But I don't like such crude solution.
Any suggestions would be highly appreciated.
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