Ruff: enable all pyflakes and perf rules

ruff.toml

@@ -7,20 +7,22 @@ exclude = [
 [lint]
 extend-select = [
 	"C901",
-	"PERF401",
 	"W",
 
 	# local
 	"ANN2", # missing-return-type-*
-	"FA", # flake8-future-annotations
+	"F", # Pyflakes
 	"F404", # late-future-import
+	"FA", # flake8-future-annotations
 	"I", # isort
+	"PERF", # Perflint
 	"PYI", # flake8-pyi
+	"TRY", # tryceratops
 	"UP", # pyupgrade
-	"TRY",
 	"YTT", # flake8-2020
 ]
 ignore = [
+	"PERF203", # try-except-in-loop, temporarily disabled as changes are invasive or false-positives
 	"TRY003", # raise-vanilla-args, avoid multitude of exception classes
 	"TRY301", # raise-within-try, it's handy
 	"UP015", # redundant-open-modes, explicit is preferred

setuptools/command/easy_install.py

@@ -2183,7 +2183,7 @@ def get_args(cls, dist, header=None):
         spec = str(dist.as_requirement())
         for type_ in 'console', 'gui':
             group = type_ + '_scripts'
-            for name, ep in dist.get_entry_map(group).items():
+            for name in dist.get_entry_map(group).keys():
                 cls._ensure_safe_name(name)
                 script_text = cls.template % locals()
                 args = cls._get_script_args(type_, name, header, script_text)

setuptools/tests/test_integration.py

@@ -7,6 +7,7 @@
 import os
 import sys
 import urllib.request
+from importlib.util import find_spec
 
 import pytest
 
@@ -23,12 +24,8 @@
 def setup_module(module):
     packages = 'stevedore', 'virtualenvwrapper', 'pbr', 'novaclient'
     for pkg in packages:
-        try:
-            __import__(pkg)
-            tmpl = "Integration tests cannot run when {pkg} is installed"
-            pytest.skip(tmpl.format(**locals()))
-        except ImportError:
-            pass
+        if find_spec(pkg) is not None:
+            pytest.skip(f"Integration tests cannot run when {pkg} is installed")
 
     try:
         urllib.request.urlopen('https://pypi.python.org/pypi')

setuptools/tests/test_manifest.py

@@ -485,14 +485,8 @@ def test_process_template_line_invalid(self):
             'prune',
             'blarg',
         ):
-            try:
+            with pytest.raises(DistutilsTemplateError):
                 file_list.process_template_line(action)
-            except DistutilsTemplateError:
-                pass
-            except Exception:
-                assert False, "Incorrect error thrown"
-            else:
-                assert False, "Should have thrown an error"
 
     def test_include(self, caplog):
         caplog.set_level(logging.DEBUG)