Pickling/unpickling Cookie.SimpleCookie fails with protocol=2

[Georg Brandl]

Erwin S. Andreasen wrote:
> Pickling a Cookie.SimpleCookie (or SmartCookie) when using protocol=2
> seems to do something very strange. Protocol 0/1 work fine:
> 
> $ python2.4
> Python 2.4.2 (#2, Nov 20 2005, 17:04:48) 
> [GCC 4.0.3 20051111 (prerelease) (Debian 4.0.2-4)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> 
>>>> import cPickle, Cookie
>>>> cPickle.loads(cPickle.dumps(Cookie.SimpleCookie('hi=there')))
> <SimpleCookie: hi='there'>
> 
> Protocol 2 however:
> 
>>>> pickle.loads(pickle.dumps(Cookie.Cookie('hi=there'),2))
> <SmartCookie: hi=<Morsel: hi='there'>>
> 
>>>>pickle.loads(pickle.dumps(Cookie.Cookie('hi=there'),2))['hi'].__dict__
> 
> {'coded_value':
> '"ccopy_reg\\012_reconstructor\\012p1\\012(cCookie\\012Morsel\\012p2\\012c__builtin__\\012dict\\012p3\\012(dp4\\012S\'comment\'\\012p5\\012S\'\'\\012sS\'domain\'\\012p6\\012S\'\'\\012sS\'version\'\\012p7\\012S\'\'\\012sS\'secure\'\\012p8\\012S\'\'\\012sS\'path\'\\012p9\\012S\'\'\\012sS\'expires\'\\012p10\\012S\'\'\\012sS\'max-age\'\\012p11\\012S\'\'\\012stRp12\\012(dp13\\012S\'coded_value\'\\012p14\\012S\'there\'\\012p15\\012sS\'value\'\\012p16\\012g15\\012sS\'key\'\\012p17\\012S\'hi\'\\012p18\\012sb."',
> 'value': <Morsel: hi='there'>, 'key': 'hi'}
> 
> 
> I can't really say what goes wrong here, but it looks like a bug to me
> -- comments? I guess I'll have to go to protocol 0 for this, or not
> serialize the cookie but re-parse it on the other side (this pickle
> gets passed down a UNIX socket together with the file descriptor of a
> request, in a load balancing system).

You can report a bug at SourceForge.

Georg