如何将文件从Python程序包（站点程序包）复制到目录？

Question

The situation is this: I have a Python library that serves to communicate with some other hardware using a custom protocol. Whoever uses this solution needs a library in C code to implement the other end of the communications.

I figured that a easy way to do this is to put the files in the Python package and provide a command that copies the files to a directory of choice. The files are bundled correctly, but I can't figure how to access them. I was hoping it would be this easy:

# 'pkgname' is a placeholder for package in site-packages.
shutil.copy('pkgname' + os.sep + 'filename', os.getcwd())

But then I get:

FileNotFoundError: [Errno 2] No such file or directory: 'pkgname\\filename'

Any suggestion on how to fix the copy issue? Or the problem itself?

Answer 1

Found a working solution, the main thing I was looking for was the first line:

pkgdir = sys.modules['<mypkg>'].__path__[0]
fullpath = os.path.join(pkgdir, <myfile>)
shutil.copy(fullpath, os.getcwd())

Also did a silly error of not import the module in question; guess the obvious bugs are the hardest to find.