PFreeze appears to leave out panda3d.core, yet it's included

Scripting Issues
1

Hi. I have managed to package my game into a shared library (.pyd), but I wanted to go one step further and make it less easy to attack/decompile. I tried to change the extension of .pyd to .exe in my builder (that just uses pfreeze). I have the command it executes here:

C:/Panda3D-1.9.2\python/ppython.exe -m direct.showutil.pfreeze -i toontown.*.* -i otp.*.* -i direct.*.* -i pandac.*.* -i panda3d.* -i encodings.* -i base64 -i site -o rebuilt.exe toontown/toonbase/ClientStartDist.py

The executable is generated with no errors. When I run it, it gives this traceback:

Traceback (most recent call last):
  File "__main__", line 23, in <module>
ImportError: No module named core

The main module, ClientStartDist, errors on line 23. The line is:

from panda3d.core import loadPrcFileData

The error is obvious. It is not including panda3d.core. But, the command CLEARLY states to include ALL the modules under the panda3d folder.
When I try freezing with the unsupported 1.8.1, it decides to work until a module named libpandadna tries to import panda3d.core, giving the very confusing and misleading error “DLL Load failed”.
Any and all help is appreciated, and if you need more information, I am happy to supply it. Thank you :smiley:

2

This is a shortcoming in Python; it cannot load extension modules inside frozen packages. You should use -x panda3d to leave out the panda3d package entirely, or use dark magic to set the path appropriately, such as this:

import panda3d
panda3d.__path__ = ['directory/to/look/for/panda3d/pyds/']
import panda3d.core

However, there’s an alternative approach I just pushed to pfreeze.py and FreezeTool.py. If you pass the -l option to pfreeze, it will link in the extension modules directly, causing them to be treated as built-in modules to the Python interpreter. This is experimental, but it seems to work on both Linux and Windows, and panda3d.core et al are handled seamlessly.

3

Thank you for the help. However, this didn’t appear to work, and still returned no module named core. The linking works, but I needed a custom panda that has support for Astron. So, I built it and installed it. I tried using pfreeze and freezetool from 1.10 with the Astron panda3d, and that kept returning errors. So, I reinstalled it and tried your suggestion, and it didn’t work.