cleanup: Remove `pkg_resources` usage

docs/topics/components.rst

@@ -70,7 +70,7 @@ If your requirement is a minimum Scrapy version, you may use
 
 .. code-block:: python
 
-    from pkg_resources import parse_version
+    from packaging.version import parse as parse_version
 
     import scrapy
 

scrapy/cmdline.py

@@ -3,8 +3,7 @@ import cProfile
 import inspect
 import os
 import sys
-
-import pkg_resources
+from importlib.metadata import entry_points
 
 import scrapy
 from scrapy.commands import BaseRunSpiderCommand, ScrapyCommand, ScrapyHelpFormatter
@@ -49,7 +48,7 @@ def _get_commands_from_module(module, inproject):
 
 def _get_commands_from_entry_points(inproject, group="scrapy.commands"):
     cmds = {}
-    for entry_point in pkg_resources.iter_entry_points(group):
+    for entry_point in entry_points(group):
         obj = entry_point.load()
         if inspect.isclass(obj):
             cmds[entry_point.name] = obj()

setup.py

@@ -1,6 +1,6 @@
 from pathlib import Path
 
-from pkg_resources import parse_version
+from packaging.version import parse as parse_version
 from setuptools import __version__ as setuptools_version
 from setuptools import find_packages, setup
 

tests/test_crawler.py

@@ -6,7 +6,7 @@ import sys
 import warnings
 from pathlib import Path
 
-from pkg_resources import parse_version
+from packaging.version import parse as parse_version
 from pytest import mark, raises
 from twisted import version as twisted_version
 from twisted.internet import defer