Getting Python package distribution version from within a package

Question

You can get the version of a python distribution using

import pkg_resources
pkg_resources.get_distribution(\"distro\").version

This is grea

Answer 1

After a couple of hours of exploring pkg_resources and reading the source for pip's uninstall I've got the following working:

import inspect
import pkg_resources
import csv

class App(object):
    def get_app_version(self) -> str:
        # Iterate through all installed packages and try to find one that has the app's file in it
        app_def_path = inspect.getfile(self.__class__)
        for dist in pkg_resources.working_set:
            try:
                filenames = [
                    os.path.normpath(os.path.join(dist.location, r[0]))
                    for r in csv.reader(dist.get_metadata_lines("RECORD"))
                ]
                if app_def_path in filenames:
                    return dist.version
            except FileNotFoundError:
                # Not pip installed or something
                pass
        return "development"

This iterates through all installed packages and for each of those iterates through its list of files and tries to match that to the current file, this matches the package to the distribution. It's not really ideal, and I'm still open to better answers.