Library and real path name

[Fredrik Lundh]

Michele Petrazzo wrote:
> I want to redistribute the library that I create.
> I create a project, its setup.py that when launched copy all files into
> the "site-packages/library" directory. And here it's all ok.
> When I call my library with:
>
> import library
> library.class()
>
> I want that my library know where are its real path
> (site-packages/library/)

you can use the __file__ or __path__ variables to determine this.
e.g.

    # get this module's directory
    import os
    prefix = os.path.dirname(__file__)

or, inside a package __init__.py file:

    # get package's main directory
    prefix = __path__[0]

</F>