Replace pkg_resources with importlib.metadata

[sbraz]

@miigotu As discussed in #50 (comment), do you have any good example of packages using importlib.metadata to expose a __version__ attribute?

I guess we'll have to use the backport for older Pythons too.

[sbraz]

It looks as straightforward as:

try:
    from importlib import metadata
except ImportError:
    import importlib_metadata as metadata

__version__ = metadata.version("pymediainfo")

[sbraz]

diff --git a/pymediainfo/__init__.py b/pymediainfo/__init__.py
index f05a5a5..efe1974 100644
--- a/pymediainfo/__init__.py
+++ b/pymediainfo/__init__.py
@@ -12,11 +12,14 @@ import warnings
 import xml.etree.ElementTree as ET
 from typing import Any, Dict, List, Optional, Tuple, Union
 
-from pkg_resources import DistributionNotFound, get_distribution
+try:
+    from importlib import metadata
+except ImportError:
+    import importlib_metadata as metadata  # type: ignore
 
 try:
-    __version__ = get_distribution("pymediainfo").version
-except DistributionNotFound:
+    __version__ = metadata.version("pymediainfo")
+except metadata.PackageNotFoundError:
     pass
 
 

That seems to work, now I just need to set the dependencies right in setup.py.

[sbraz]

@miigotu I'll push this latest commit with a version bump tomorrow. It's slightly late here and I want to take one last look when I'm properly awake. Thanks for the useful advice.