Python and Py2Exe: '% 1 is not a valid Win32 application & rdquo;


I'm trying to compile a python project into an executable. To test this, I've got Py2Exe installed, and am trying to do their test. Here is

print "Hello World!"

Here is my

from distutils.core import setup
import py2exe


I do the following on the command line:

python py2exe

And I get it mostly working until it start 'finding dlls needed', at which point we get:

<some trace>
ImportError: DLL load failed: %1 is not a valid Win32 application.

Python version is 2.6.6, and I'm on a 32-bit machine running Windows 7. Any ideas or help most appreciated.

In my experience py2exe is rather difficult to use, a bit hit-and-miss in terms of whether it will work or not, and an absolute nightmare to get working at all with any matplotlib import.

I realise this question is quite old now, but I am not sure why people continue to use py2exe when there are much smoother functioning alternatives available. I have have good results with pyinstaller (which was recommended to me after asking a question here on SO where I was also battling with py2exe). Now every time I have tried it it "just worked", so if you're still interested in packing up python code into executables then try give this app a shot instead.

Note: py2exe hasn't been updated for some years, while python and 3rd party modules have, which must be partly why it often doesn't work particularly well these days.