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To: python-list@python.org
From: "Gabriel Genellina" <gagsl-py2@yahoo.com.ar>
Subject: Re: cPickle -> invalid signature
Date: Tue, 17 May 2011 21:47:06 -0300
References: <iqtmtl$77g$1@dough.gmane.org> <op.vvmkynldx6zn5v@gabriel.sleipnir-bsas> <iqueld$tnu$1@dough.gmane.org>
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:5636

En Tue, 17 May 2011 15:26:53 -0300, Neal Becker <ndbecker2@gmail.com>
escribió:

> Gabriel Genellina wrote:
>
>> En Tue, 17 May 2011 08:41:41 -0300, Neal Becker <ndbecker2@gmail.com>
>> escribió:
>>
>>> What does it mean when cPickle.load says:
>>> RuntimeError: invalid signature
>>>
>>> Is binary format not portable?
>>
>> Are you sure that's the actual error message?
>> I cannot find such message anywhere in the sources.
>> The pickle format is quite portable, even cross-version. As a generic
>> answer, make sure you open the file in binary mode, both when writing  
>> and
>> reading.
>>
>
> Yes, that's the message.
>
> Part of what is pickled is a numpy array.  I am writing on a 32-bit  
> linux system
> and reading on a 64-bit system.  Reading on the 64-bit system is no  
> problem.
>
> Maybe the message comes from numpy's unpickling?

Maybe, at least 'invalid signature' makes sense in Numpy. In that case, a
better place to ask would be a numpy specific list, see
http://www.scipy.org/Mailing_Lists


-- 
Gabriel Genellina