Re: Building on Win7 x64 for python2.6.4 x64 DLL load failed Error

From: Jack Straw <jack(dot)straw(at)saddingtonbaynes(dot)com>
To: Daniele Varrazzo <daniele(dot)varrazzo(at)gmail(dot)com>
Cc: "psycopg(at)postgresql(dot)org" <psycopg(at)postgresql(dot)org>
Subject: Re: Building on Win7 x64 for python2.6.4 x64 DLL load failed Error
Date: 2013-11-28 17:58:28
Message-ID: CAOz4VE06x8CY-bSsmnNk6rw0bNFYasOxcFVPo0xROkf59neb2A@mail.gmail.com
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It does smell like it but I cannot find the source of the smell. I'm
definitely using x64 build tools, the Maya install is x64 and I have
checked that the python is x64 (using "print("%x" % sys.maxsize,
sys.maxsize > 2**32)").

Do you have any experience with Dependancy Walker? A lot of the links
reference it to find the missing dependencies but I have no idea what to do
with the information.

Jack

On 28 November 2013 17:41, Daniele Varrazzo <daniele(dot)varrazzo(at)gmail(dot)com>wrote:

> On Thu, Nov 28, 2013 at 5:26 PM, Jack Straw
> <jack(dot)straw(at)saddingtonbaynes(dot)com> wrote:
> > Hi,
> >
> > I am trying to build psycopg2 for a version of python that is packaged
> with
> > the 3D creation package Maya (version 2013). I can build and install
> > psycopg2 to the python install but when load the module I get the
> following
> > error;
> >
> > # Error: ImportError: file C:\Program
> > Files\Autodesk\Maya2013\Python\lib\site-packages\psycopg2\__init__.py
> line
> > 50: DLL load failed: %1 is not a valid Win32 application. #
> >
> > My build process is;
> >
> > Run the x64 VS9 build environment setup script
> > Build the cextenstion, including the right libs and headers; "C:\Program
> > Files\Autodesk\Maya2013\bin\mayapy.exe" setup.py build_ext -"IC:\Program
> > Files\Autodesk\Maya2013\include\python2.6" -"LC:\Program
> > Files\Autodesk\Maya2013\lib"
> > Build the rest of the module
> > Install
>
> Smells like a 32/64 bit mess-up between Maya, Python and the compiler.
>
> Googling "python DLL load failed: %1 is not a valid Win32 application"
> yields lots of result, for example
>
>
> http://stackoverflow.com/questions/4676433/solving-dll-load-failed-1-is-not-a-valid-win32-application-for-pygame
>
> Particularly interesting is this resource:
>
> http://www.lfd.uci.edu/~gohlke/pythonlibs/#psycopg
>
> offering alternative win builds of psycopg.
>
> -- Daniele
>

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