Fix DeprecationWarning: pkg_resources is deprecated as an API

Makefile

@@ -2,7 +2,7 @@
 
 deps:  ## Install dependencies for apio development
 	python -m pip install --upgrade pip
-	pip install flit black flake8 pylint tox pytest semantic-version pyserial
+	pip install flit black flake8 pylint tox pytest semantic-version pyserial importlib-metadata
 
 
 cenv:  ## Create the virtual-environment and update dependencies

apio/managers/arguments.py

@@ -34,6 +34,8 @@ def process_arguments(args, resources):  # noqa
         var_idcode = args.get("idcode")
         var_verbose = args.get("verbose")
         var_topmodule = args.get("top-module")
+
+    # -- No user arguments given
     else:
         var_board = None
         var_arch = None
@@ -45,6 +47,8 @@ def process_arguments(args, resources):  # noqa
         var_verbose = {}
         var_topmodule = None
 
+    print(f"DEBUG!!!! TOP-MODULE: {var_topmodule}")
+
     if var_board:
         if isfile("apio.ini"):
             click.secho("Info: ignore apio.ini board", fg="yellow")

apio/managers/scons.py

@@ -15,9 +15,8 @@
 from os.path import isfile
 from pathlib import Path
 
+import importlib.metadata
 import click
-
-import pkg_resources
 import semantic_version
 
 from apio import util
@@ -270,7 +269,7 @@ def check_pip_packages(self, board_data):
             try:
                 # Check pip_package version
                 spec = semantic_version.Spec(all_pip_packages.get(pip_pkg, ""))
-                pkg_version = pkg_resources.get_distribution(pip_pkg).version
+                pkg_version = importlib.metadata.version(pip_pkg)
                 version = semantic_version.Version(pkg_version)
                 if not spec.match(version):
                     click.secho(
@@ -284,7 +283,7 @@ def check_pip_packages(self, board_data):
                         fg="yellow",
                     )
                     raise ValueError("Incorrect version number")
-            except pkg_resources.DistributionNotFound as exc:
+            except importlib.metadata.PackageNotFoundError as exc:
                 click.secho(f"Error: '{pip_pkg}' is not installed", fg="red")
                 click.secho(
                     "Please run:\n" f"   pip install -U apio[{pip_pkg}]",