[Python-Dev] 64-bit bytecode compatibility (was Re: [PEAK] ez_setup on 64-bit linux problem) (original) (raw)

Phillip J. Eby pje at telecommunity.com
Thu Sep 29 17:53:06 CEST 2005

At 09:49 AM 9/29/2005 -0400, Viren Shah wrote:

[I sent this earlier without being a subscriber and it was sent to the moderation queue so I'm resending it after subscribing]

Hi, I'm running a 64-bit Fedora Core 3 with python 2.3.4. I'm trying to install setuptools to use with Trac, and get the following error: [root at Mrdumpling ~]$ python ezsetup.py Downloading http://cheeseshop.python.org/packages/2.3/s/setuptools/setuptools-0.6a4-py2.3.egg Traceback (most recent call last): File "ezsetup.py", line 206, in ? main(sys.argv[1:]) File "ezsetup.py", line 141, in main from setuptools.command.easyinstall import main OverflowError: signed integer is greater than maximum

I get the same type of error if I try installing setuptools manually. I figure this has to do with the 64-bit nature of the OS and python, but not being a python person, don't know what a workaround would be. Any ideas?

Hm. It sounds like perhaps the 64-bit Python in question isn't able to read bytecode for Python from a 32-bit Python version. You'll need to download the setuptools source archive from PyPI and install it using "python setup.py install" instead.

In the meantime, I'm going to inquire on Python-Dev about whether a 64-bit Python should be able to read 32-bit bytecode, as I was under the impression Python's bytecode format was supposed to be cross-platform. See e.g.:

http://mail.python.org/pipermail/python-list/2004-March/213039.html

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