Python bindings: Port pkg_resources to importlib_resources for python < 3.9

Co-authored-by: Arusekk <floss@arusekk.pl>

Author: Antelox

.github/workflows/build-wheels-publish.yml

@@ -296,11 +296,9 @@ jobs:
 
       - name: Build SDist
         run: |
-          cd bindings/python
           python3 -m pip install -U pip build
-          python3 -m build --sdist
-          python3 -m pip install dist/*.tar.gz
-          cd ~
+          python3 -m build --sdist bindings/python
+          python3 -m pip install bindings/python/dist/*.tar.gz
           python3 -c 'import unicorn; print(f"Unicorn version installed from sdist: {unicorn.__version__}")'
 
       - uses: actions/upload-artifact@v4

bindings/python/pyproject.toml

@@ -6,6 +6,9 @@ build-backend = "setuptools.build_meta"
 name = "unicorn"
 dynamic = ["version"]
 requires-python = ">= 2.7, != 3.0.*, != 3.1.*, != 3.2.*, != 3.3.*, != 3.4.*, != 3.5.*, != 3.6.*"
+dependencies = [
+    "importlib_resources; python_version < '3.9'"
+]
 authors = [
     { name = "Nguyen Anh Quynh", email = "quynh@gmail.com" },
 ]

bindings/python/unicorn/unicorn_py3/unicorn.py

@@ -109,19 +109,17 @@ def _load_lib(path: Path, lib_name: str):
 
     # Loading attempts, in order
     # - user-provided environment variable
-    # - pkg_resources can get us the path to the local libraries
+    # - importlib.resources/importlib_resources can get us the path to the local libraries
     # - we can get the path to the local libraries by parsing our filename
     # - global load
     # - python's lib directory
 
-    if sys.version_info.minor >= 12:
-        from importlib import resources
-
-        canonicals = resources.files('unicorn') / 'lib'
+    if sys.version_info >= (3, 9):
+        import importlib.resources as resources
     else:
-        import pkg_resources
+        import importlib_resources as resources
 
-        canonicals = pkg_resources.resource_filename('unicorn', 'lib')
+    canonicals = resources.files('unicorn') / 'lib'
 
     lib_locations = [
         os.getenv('LIBUNICORN_PATH'),