Remove possibly redundant importlib_machinery code

newsfragments/4097.feature.rst

@@ -0,0 +1 @@
+Updated `pkg_resources` to use stdlib `importlib.machinery` instead of `importlib_machinery` -- by :user:`Avasam`

pkg_resources/__init__.py

@@ -41,6 +41,7 @@
 import ntpath
 import posixpath
 import importlib
+import importlib.machinery
 from pkgutil import get_importer
 
 try:
@@ -68,14 +69,6 @@
 from os import open as os_open
 from os.path import isdir, split
 
-try:
-    import importlib.machinery as importlib_machinery
-
-    # access attribute to force import under delayed import mechanisms.
-    importlib_machinery.__name__
-except ImportError:
-    importlib_machinery = None
-
 from pkg_resources.extern.jaraco.text import (
     yield_lines,
     drop_comment,
@@ -1734,7 +1727,7 @@ def _register(cls):
             'SourcelessFileLoader',
         )
         for name in loader_names:
-            loader_cls = getattr(importlib_machinery, name, type(None))
+            loader_cls = getattr(importlib.machinery, name, type(None))
             register_loader_type(loader_cls, cls)
 
 
@@ -2229,7 +2222,7 @@ def resolve_egg_link(path):
 if hasattr(pkgutil, 'ImpImporter'):
     register_finder(pkgutil.ImpImporter, find_on_path)
 
-register_finder(importlib_machinery.FileFinder, find_on_path)
+register_finder(importlib.machinery.FileFinder, find_on_path)
 
 _declare_state('dict', _namespace_handlers={})
 _declare_state('dict', _namespace_packages={})
@@ -2396,7 +2389,7 @@ def file_ns_handler(importer, path_item, packageName, module):
     register_namespace_handler(pkgutil.ImpImporter, file_ns_handler)
 
 register_namespace_handler(zipimport.zipimporter, file_ns_handler)
-register_namespace_handler(importlib_machinery.FileFinder, file_ns_handler)
+register_namespace_handler(importlib.machinery.FileFinder, file_ns_handler)
 
 
 def null_ns_handler(importer, path_item, packageName, module):