Compiled project crashes when frozen with cx_freeze about pythonnet HOT 15 CLOSED

I'm getting the exact same error as here: http://stackoverflow.com/questions/26110026/pyinstaller-and-pythonnet-clr

I've tried cx_freeze, py2exe and pyinstaller. I'm using Python 2.7 64bit, Windows 7 64bit. and I have a bunch of .Net frameworks installed, including 4 and 4.5.

Is it at all possible to create an exe that using python.net?

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@jfbramboll @kelvinomolumo PyInstaller should provide a hook to include pythonnet:

pyinstaller/pyinstaller#637

it is reportedly working for people here:
https://groups.google.com/forum/#!topic/pyinstaller/juS48yx3XyE

I am not sure about cx_freeze

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pyinstaller has been updated to include proper clr (pythonnet) hook:

pyinstaller/pyinstaller#1801

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In order to stop crashing with cx_freeze you need to manually add Python.Runtime.dll file from pythonnet package to your binary directory.

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@konstantin-popov does cx_freeze allow configuring hooks for various packages so that this works by default?

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Not sure, but I think it does, looking at this: https://github.com/anthony-tuininga/cx_Freeze/blob/master/cx_Freeze/hooks.py

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@konstantin-popov feel free to submit a pull request to cx_freeze to implement this hook based on pyinstaller implementation. We cannot do anything about this in pythonnet without breaking a lot of code.

marcelotduarte/cx_Freeze#249

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We cannot do anything about this in pythonnet without breaking a lot of code.

Sure. My reply was not a call to action, only a recipe how to deal with this specific problem - actually not with patching cx_freeze, but with adding a file to build using configuration options (option 'include_files').

The ticket you mentioned is actually about a different problem - failing to import custom .NET libraries in frozen app.

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@konstantin-popov you need to update sys.path in order to custom load your .NET assemblies. See fairly complicated example for pyinstaller here:

#325

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I do update sys.path and clr.AddReference('customlib') throws no exceptions - the problem appears later in code when importing the assembly.
I guess pythonnet hooks into python import system to load .NET assemblies, but after freezing the app with cx_freeze in doesn't work for some reason.

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Is there a traceback available?

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@konstantin-popov minimum reproducible example would be handy. Also make sure that your library does not reference other custom assemblies, maybe even during runtime.

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Also make sure that your library does not reference other custom assemblies, maybe even during runtime.

That was exactly the thing. The library was external so I didn't guess it referenced somethine else. Thanks @denfromufa!

P.S. PR with a hook for pythonnet in cx_freeze

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Pull request merged.

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@jfbramboll @kelvinomolumo can you please verify that the pythonnet hook is now working in cx_freeze? @anthony-tuininga @konstantin-popov thanks for implementing this!

Anyway if any issues come up we can reopen this issue.

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