On 27/04/2007 19.24, Don Dwiggins wrote:
>> Anyway, I would like this to be fixed automatically by PyInstaller.
>> There is much infrastructure in place to pack trees of data files into
>> the executable, unpack automatically them at startup, and let the
>> package find them. This is the way the Tkinter support works, for instance.
>
> Does this relate to the onefile description in the "Accessing Data
> Files" section in the documentation? If not, could you elaborate a bit?
> I may want to package some data files like that fairly soon.
Something like that. As you see, there's no uniform way to access data files
in PyInstaller:
- For onedir distributions, data files can just be copied through COLLECT, and
accessed using dirname(sys.executable) + "/data".
- For onefile distributions, you can either:
- Cheat using BINARY (single files get auto-extracted, but not
directories)... bleah! And use os.environ["_MEIPASS2"] to get them... bleah
bleah bleah!
- Use DATA + CArchive... bleah!
What I would like to do is something like this:
- Provide an unified model to access data files (for both onedir and onefile)
- Of course data files will be specified as DATA in spec.
- In onefile, data files should be automatically extracted from the
executable like support/unpackTK.py does. Basically, this TK-specific support
would need to be generalized.
- Once this framework is in place and working, it can be used for two
different things:
1) Users wanting to access application-specific data files.
2) Import hooks for third-party Python libraries/extensions which have
their own data files (like Matplotlib, Tkinter/Tix/T*, PyEnchant, etc.).
2.1) Add support for the pkg_resource API which many third-party Python
libraries use to access their data files.
Patches welcome, etc. :)
--
Giovanni Bajo
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