Install static files for Python package

(forgive my poor English)

I'm writing setup.py for my Python app.

My app needs some static files (pictures). I should add these files to data_files array in setup.py, and files will be installed in "/usr/xxx" path on Linux.

Then how can my app access these files after installation? I don't think it's good idea to use abslote path (like /us开发者_如何学Pythonr/share/xxx/xxx.png) in my app (it won't work on windows).

You're supposed to use sys.prefix instead of an absolute path:

filename = os.path.join(sys.prefix, "share", "xxx", "xxx.png")

distribute/setuptools provides pkg_resources for this purpose (and will work with package installed by python setup.py develop or pip install -e).

api example::

    import pkg_resources 
    assert pkg_resources.resource_exists('fabric', 'README.txt')
    assert not pkg_resources.resource_isdir('fabric', 'README.txt')
    myfile_path = pkg_resources.resource_filename('fabric', 'README.txt')
    myopen_file = pkg_resources.resource_stream('fabric', 'README.txt')
    myfile_str  = pkg_resources.resource_string('fabric', 'README.txt')
    contents_of_package = pkg_resources.resource_listdir('fabric', '')