Get 'tox -e lint' woking again

setup.cfg

@@ -6,6 +6,13 @@ create-wheel = no
 
 [flake8]
 doctests = 1
+ignore =
+    # module level import not at top of file:  we are avoiding cycles
+    E402,
+    # import not used:  we are publishing APIs, at least from __init__.py
+    F401,
+    # line break after binary operator
+    W504
 
 [check-manifest]
 ignore =

setup.py

@@ -94,56 +94,55 @@ def read(*rnames):
 
 
 long_description = (
-        read('README.rst')
-        + '\n' +
-        read('CHANGES.rst')
-        )
-
-setup(name='zope.interface',
-      version='6.5.dev0',
-      url='https://github.com/zopefoundation/zope.interface',
-      license='ZPL 2.1',
-      description='Interfaces for Python',
-      author='Zope Foundation and Contributors',
-      author_email='zope-dev@zope.org',
-      long_description=long_description,
-      classifiers=[
-          "Development Status :: 5 - Production/Stable",
-          "Intended Audience :: Developers",
-          "License :: OSI Approved :: Zope Public License",
-          "Operating System :: OS Independent",
-          "Programming Language :: Python",
-          "Programming Language :: Python :: 3",
-          "Programming Language :: Python :: 3.7",
-          "Programming Language :: Python :: 3.8",
-          "Programming Language :: Python :: 3.9",
-          "Programming Language :: Python :: 3.10",
-          "Programming Language :: Python :: 3.11",
-          "Programming Language :: Python :: 3.12",
-          "Programming Language :: Python :: Implementation :: CPython",
-          "Programming Language :: Python :: Implementation :: PyPy",
-          "Framework :: Zope :: 3",
-          "Topic :: Software Development :: Libraries :: Python Modules",
-      ],
-      packages=find_packages('src'),
-      package_dir={'': 'src'},
-      namespace_packages=["zope"],
-      cmdclass={
-          'build_ext': optional_build_ext,
-      },
-      test_suite='zope.interface.tests',
-      include_package_data=True,
-      zip_safe=False,
-      tests_require=tests_require,
-      install_requires=['setuptools'],
-      python_requires='>=3.7',
-      extras_require={
-          'docs': ['Sphinx',
-                   'repoze.sphinx.autointerface',
-                   'sphinx_rtd_theme'],
-          'test': tests_require,
-          'testing': testing_extras,
-      },
-      ext_modules=ext_modules,
-      keywords=['interface', 'components', 'plugins'],
+    read('README.rst') + '\n' + read('CHANGES.rst')
+)
+
+setup(
+    name='zope.interface',
+    version='6.5.dev0',
+    url='https://github.com/zopefoundation/zope.interface',
+    license='ZPL 2.1',
+    description='Interfaces for Python',
+    author='Zope Foundation and Contributors',
+    author_email='zope-dev@zope.org',
+    long_description=long_description,
+    classifiers=[
+        "Development Status :: 5 - Production/Stable",
+        "Intended Audience :: Developers",
+        "License :: OSI Approved :: Zope Public License",
+        "Operating System :: OS Independent",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: Implementation :: CPython",
+        "Programming Language :: Python :: Implementation :: PyPy",
+        "Framework :: Zope :: 3",
+        "Topic :: Software Development :: Libraries :: Python Modules",
+    ],
+    packages=find_packages('src'),
+    package_dir={'': 'src'},
+    namespace_packages=["zope"],
+    cmdclass={
+        'build_ext': optional_build_ext,
+    },
+    test_suite='zope.interface.tests',
+    include_package_data=True,
+    zip_safe=False,
+    tests_require=tests_require,
+    install_requires=['setuptools'],
+    python_requires='>=3.7',
+    extras_require={
+        'docs': ['Sphinx',
+                 'repoze.sphinx.autointerface',
+                 'sphinx_rtd_theme'],
+        'test': tests_require,
+        'testing': testing_extras,
+    },
+    ext_modules=ext_modules,
+    keywords=['interface', 'components', 'plugins'],
 )

src/zope/interface/__init__.py

@@ -58,7 +58,7 @@ def meth(arg1, arg2):
 _wire()
 del _wire
 
-from zope.interface.declarations import Declaration
+from zope.interface.declarations import Declaration  # isort: skip
 # The following are to make spec pickles cleaner
 from zope.interface.declarations import Provides
 from zope.interface.declarations import alsoProvides

src/zope/interface/_compat.py

@@ -29,6 +29,7 @@ def _normalize_name(name):
         return name
     raise TypeError("name must be a string or ASCII-only bytes")
 
+
 PYPY = hasattr(sys, 'pypy_version_info')
 
 
@@ -57,7 +58,7 @@ def _c_optimizations_available():
     try:
         from zope.interface import _zope_interface_coptimizations as c_opt
         return c_opt
-    except catch: # pragma: no cover (only Jython doesn't build extensions)
+    except catch:  # pragma: no cover (only Jython doesn't build extensions)
         return False
 
 
@@ -120,7 +121,7 @@ def find_impl():
             return py_impl
 
         c_opt = _c_optimizations_available()
-        if not c_opt: # pragma: no cover (only Jython doesn't build extensions)
+        if not c_opt:  # pragma: no cover (Jython doesn't build extensions)
             return py_impl
 
         __traceback_info__ = c_opt

src/zope/interface/_flatten.py

@@ -24,7 +24,7 @@ def _flatten(implements, include_None=0):
         r = implements.flattened()
     except AttributeError:
         if implements is None:
-            r=()
+            r = ()
         else:
             r = Declaration(implements).flattened()