Fix some 2/3 differences and run pylint with confidence=HIGH

Too many false positives otherwise.

ubuntutools/question.py

@@ -26,7 +26,7 @@ import sys
 import ubuntutools.subprocess
 
 if sys.version_info[0] < 3:
-    input = raw_input  # noqa
+    input = raw_input  # noqa, pylint: disable=undefined-variable
 
 
 class Question(object):

ubuntutools/requestsync/mail.py

@@ -199,16 +199,30 @@ Content-Type: text/plain; charset=UTF-8
                           mailserver_port)
             s = smtplib.SMTP(mailserver_host, mailserver_port)
             break
-        except socket.error as s:
-            Logger.error('Could not connect to %s:%s: %s (%i)',
-                         mailserver_host, mailserver_port, s[1], s[0])
-            return
         except smtplib.SMTPConnectError as s:
-            Logger.error('Could not connect to %s:%s: %s (%i)',
-                         mailserver_host, mailserver_port, s[1], s[0])
+            try:
+                # py2 path
+                # pylint: disable=unsubscriptable-object
+                Logger.error('Could not connect to %s:%s: %s (%i)',
+                             mailserver_host, mailserver_port, s[1], s[0])
+            except TypeError:
+                # pylint: disable=no-member
+                Logger.error('Could not connect to %s:%s: %s (%i)',
+                             mailserver_host, mailserver_port, s.strerror, s.errno)
             if s.smtp_code == 421:
                 confirmation_prompt(message='This is a temporary error, press [Enter] '
                                             'to retry. Press [Ctrl-C] to abort now.')
+        except socket.error as s:
+            try:
+                # py2 path
+                # pylint: disable=unsubscriptable-object
+                Logger.error('Could not connect to %s:%s: %s (%i)',
+                             mailserver_host, mailserver_port, s[1], s[0])
+            except TypeError:
+                # pylint: disable=no-member
+                Logger.error('Could not connect to %s:%s: %s (%i)',
+                             mailserver_host, mailserver_port, s.strerror, s.errno)
+            return
 
     if mailserver_user and mailserver_pass:
         try:

ubuntutools/test/test_pylint.py

@@ -38,7 +38,7 @@ class PylintTestCase(unittest.TestCase):
         else:
             pylint_binary = 'pylint'
         cmd = [pylint_binary, '--rcfile=ubuntutools/test/pylint.conf', '-E',
-               '--reports=n', '--'] + files
+               '--reports=n', '--confidence=HIGH', '--'] + files
         sys.stderr.write("Running following command:\n{}\n".format(" ".join(cmd)))
         process = subprocess.Popen(cmd, stdout=subprocess.PIPE,
                                    stderr=subprocess.PIPE, close_fds=True)