Add linting with Pylint to build workflow

.github/workflows/build.yml

@@ -150,6 +150,7 @@ jobs:
         toxenv:
           - flake8
           - check-python-versions
+          - pylint
           - yamllint
 
     steps:

.pylintrc

@@ -0,0 +1,5 @@
+[TYPECHECK]
+ignored-modules=meliae, win32com.client, yappi
+
+[VARIABLES]
+additional-builtins=_, _n

linkcheck/checker/const.py

@@ -41,7 +41,7 @@ ExcCacheList = [
     EOFError,
     # http errors
     requests.exceptions.RequestException,
-    requests.packages.urllib3.exceptions.HTTPError,
+    requests.packages.urllib3.exceptions.HTTPError,  # pylint: disable=no-member
     # ftp errors
     ftplib.Error,
     # idna.encode(), called from socket.create_connection()

linkcheck/checker/httpurl.py

@@ -26,6 +26,7 @@ import requests
 import warnings
 
 warnings.simplefilter(
+    # pylint: disable=no-member
     'ignore', requests.packages.urllib3.exceptions.InsecureRequestWarning
 )
 

linkcheck/checker/urlbase.py

@@ -16,6 +16,8 @@
 """
 Base URL handler.
 """
+# pylint: disable=assignment-from-none, catching-non-exception, no-member
+
 import sys
 import os
 import urllib.parse

tests/test_dummy.py

@@ -16,6 +16,7 @@
 """
 Test dummy object.
 """
+# pylint: disable=no-member, not-callable
 
 import unittest
 

tox.ini

@@ -33,6 +33,13 @@ deps = check-python-versions
 skip_install = true
 commands = check-python-versions {posargs}
 
+[testenv:pylint]
+deps =
+    pylint
+    -rrequirements.txt
+skip_install = true
+commands = pylint {posargs} -E linkcheck
+
 [testenv:yamllint]
 deps = yamllint
 skip_install = true