all: Make pylint happy

As of pylint 3.3.1 on CPython 3.12.
The only remaining warning is that the cgi module is deprecated, and will
disappear in python 3.13 . Fun.

.pylintrc

@@ -7,12 +7,15 @@ max-nested-blocks=6
 max-module-lines=1500
 
 [MESSAGES CONTROL]
+# Note about too-many-positional-arguments: I would like to enable it, but it
+# triggers on callable definition unless using the "*" argument synatx to
+# actively forbid positional calls. Except this would break compatibility with
+# older python versions, so it is a no-go.
 disable=
+  too-many-positional-arguments,
   duplicate-code,
   fixme,
   invalid-name,
-  bad-continuation,
-  bad-whitespace,
   consider-using-f-string,
   too-few-public-methods,
   too-many-locals,

caucase/cli.py

@@ -89,7 +89,7 @@ class RetryingCaucaseClient(CaucaseClient):
           u'Got a network error, retrying at %s, %s: %r' % (
             next_try.strftime(u'%Y-%m-%d %H:%M:%S +0000'),
             exception.__class__.__name__,
-            unicode(exception),
+            unicode(exception), # pylint: disable=possibly-used-before-assignment
           ),
           file=self._log_file,
         )

caucase/storage.py

@@ -48,7 +48,7 @@ class NoReentryConnection(sqlite3.Connection):
 
   def __enter__(self):
     if self.__entered: # pragma: no cover
-      raise Exception('Subtransactions are not supported')
+      raise RuntimeError('Subtransactions are not supported')
     self.__entered = True
     return super(NoReentryConnection, self).__enter__()
 

caucase/test.py

@@ -24,6 +24,7 @@ Caucase - Certificate Authority for Users, Certificate Authority for SErvices
 Test suite
 """
 # pylint: disable=too-many-lines, too-many-public-methods
+# pylint: disable=unbalanced-tuple-unpacking
 from __future__ import absolute_import
 try:
   from http.cookies import SimpleCookie
@@ -160,7 +161,9 @@ else: # pragma: no cover
     """
     For forward-compatibility wit 3.x unittest API.
     """
+    # pylint: disable=no-member
     assertRegex = unittest.TestCase.assertRegexpMatches
+    # pylint: enable=no-member
 
 class assertHTMLNoScriptAlert(
   html_parser.HTMLParser,
@@ -216,7 +219,6 @@ def canConnect(address): # pragma: no cover
     if e.errno == errno.ECONNREFUSED:
       return False
     raise
-  else:
   sock.close()
   return True
 
@@ -831,7 +833,7 @@ class CaucaseTest(TestCase):
       while True:
         row = c.fetchone()
         if row is None: # pragma: no cover
-          raise Exception('CA with serial %r not found' % (serial, ))
+          raise ValueError('CA with serial %r not found' % (serial, ))
         crt = utils.load_ca_certificate(utils.toBytes(row['crt']))
         if crt.serial_number == serial:
           new_crt = self._setCertificateRemainingLifeTime(

caucase/utils.py

@@ -779,7 +779,9 @@ def toUnicode(value, encoding='ascii'):
   """
   Convert value to unicode object, if it is not already.
   """
+  # pylint: disable=possibly-used-before-assignment
   return value if isinstance(value, unicode) else value.decode(encoding)
+  # pylint: enable=possibly-used-before-assignment
 
 def toBytes(value, encoding='ascii'):
   """