More pylint fixes, added pylint to the build process.

.pylintrc

@@ -0,0 +1,378 @@
+[MASTER]
+
+# Specify a configuration file.
+#rcfile=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=CVS
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# List of plugins (as comma separated values of python modules names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+# Use multiple processes to speed up Pylint.
+jobs=1
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code
+extension-pkg-whitelist=
+
+# Allow optimization of some AST trees. This will activate a peephole AST
+# optimizer, which will apply various small optimizations. For instance, it can
+# be used to obtain the result of joining multiple strings with the addition
+# operator. Joining a lot of strings can lead to a maximum recursion error in
+# Pylint and this flag can prevent that. It has one side effect, the resulting
+# AST will be different than the one from reality.
+optimize-ast=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED
+confidence=
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time. See also the "--disable" option for examples.
+#enable=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once).You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use"--disable=all --enable=classes
+# --disable=W"
+disable=execfile-builtin,zip-builtin-not-iterating,range-builtin-not-iterating,hex-method,old-division,file-builtin,long-builtin,input-builtin,no-absolute-import,invalid-name,delslice-method,suppressed-message,coerce-builtin,buffer-builtin,import-star-module-level,round-builtin,old-ne-operator,apply-builtin,missing-final-newline,basestring-builtin,xrange-builtin,getslice-method,filter-builtin-not-iterating,map-builtin-not-iterating,raw_input-builtin,indexing-exception,dict-iter-method,metaclass-assignment,setslice-method,next-method-called,intern-builtin,using-cmp-argument,missing-docstring,oct-method,backtick,print-statement,reload-builtin,long-suffix,old-raise-syntax,unicode-builtin,nonzero-method,old-octal-literal,cmp-method,useless-suppression,dict-view-method,parameter-unpacking,unpacking-in-except,coerce-method,unichr-builtin,raising-string,cmp-builtin,reduce-builtin,standarderror-builtin
+
+
+[REPORTS]
+
+# Set the output format. Available formats are text, parseable, colorized, msvs
+# (visual studio) and html. You can also give a reporter class, eg
+# mypackage.mymodule.MyReporterClass.
+output-format=text
+
+# Put messages in a separate file for each module / package specified on the
+# command line instead of printing them on stdout. Reports (if any) will be
+# written in a file name "pylint_global.[txt|html]".
+files-output=no
+
+# Tells whether to display a full report or only the messages
+reports=yes
+
+# Python expression which should return a note less than 10 (10 is the highest
+# note). You have access to the variables errors warning, statement which
+# respectively contain the number of errors / warnings messages and the total
+# number of statements analyzed. This is used by the global evaluation report
+# (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details
+#msg-template=
+
+
+[SIMILARITIES]
+
+# Minimum lines number of a similarity.
+min-similarity-lines=5
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,XXX,TODO
+
+
+[VARIABLES]
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# A regular expression matching the name of dummy variables (i.e. expectedly
+# not used).
+dummy-variables-rgx=_$|dummy
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid to define new builtins when possible.
+additional-builtins=
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,_cb
+
+
+[LOGGING]
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format
+logging-modules=logging
+
+
+[SPELLING]
+
+# Spelling dictionary name. Available dictionaries: none. To make it working
+# install python-enchant package.
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to indicated private dictionary in
+# --spelling-private-dict-file option instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[TYPECHECK]
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis. It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# List of classes names for which member attributes should not be checked
+# (useful for classes with attributes dynamically set). This supports can work
+# with qualified names.
+ignored-classes=SQLObject
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=REQUEST,acl_users,aq_parent
+
+
+[FORMAT]
+
+# Maximum number of characters on a single line.
+max-line-length=100
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+# List of optional constructs for which whitespace checking is disabled. `dict-
+# separator` is used to allow tabulation in dicts, etc.: {1  : 1,\n222: 2}.
+# `trailing-comma` allows a space between comma and closing bracket: (a, ).
+# `empty-line` allows space-only lines.
+no-space-check=trailing-comma,dict-separator
+
+# Maximum number of lines in a module
+max-module-lines=1000
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Number of spaces of indent required inside a hanging  or continued line.
+indent-after-paren=4
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=
+
+
+[BASIC]
+
+# List of builtins function names that should not be used, separated by a comma
+bad-functions=map,filter
+
+# Good variable names which should always be accepted, separated by a comma
+good-names=i,j,k,ex,Run,_
+
+# Bad variable names which should always be refused, separated by a comma
+bad-names=foo,bar,baz,toto,tutu,tata
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Include a hint for the correct naming format with invalid-name
+include-naming-hint=no
+
+# Regular expression matching correct module names
+module-rgx=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$
+
+# Naming hint for module names
+module-name-hint=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$
+
+# Regular expression matching correct variable names
+variable-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for variable names
+variable-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct class names
+class-rgx=[A-Z_][a-zA-Z0-9]+$
+
+# Naming hint for class names
+class-name-hint=[A-Z_][a-zA-Z0-9]+$
+
+# Regular expression matching correct attribute names
+attr-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for attribute names
+attr-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct constant names
+const-rgx=(([A-Z_][A-Z0-9_]*)|(__.*__))$
+
+# Naming hint for constant names
+const-name-hint=(([A-Z_][A-Z0-9_]*)|(__.*__))$
+
+# Regular expression matching correct class attribute names
+class-attribute-rgx=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$
+
+# Naming hint for class attribute names
+class-attribute-name-hint=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$
+
+# Regular expression matching correct argument names
+argument-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for argument names
+argument-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct function names
+function-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for function names
+function-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct method names
+method-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for method names
+method-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct inline iteration names
+inlinevar-rgx=[A-Za-z_][A-Za-z0-9_]*$
+
+# Naming hint for inline iteration names
+inlinevar-name-hint=[A-Za-z_][A-Za-z0-9_]*$
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=__.*__
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+
+[ELIF]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+
+[IMPORTS]
+
+# Deprecated modules which should not be used, separated by a comma
+deprecated-modules=stringprep,optparse
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled)
+import-graph=
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled)
+ext-import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled)
+int-import-graph=
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,__new__,setUp
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=mcs
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,_fields,_replace,_source,_make
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method
+max-args=5
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore
+ignored-argument-names=_.*
+
+# Maximum number of locals for function / method body
+max-locals=15
+
+# Maximum number of return / yield for function / method body
+max-returns=6
+
+# Maximum number of branch for function / method body
+max-branches=12
+
+# Maximum number of statements in function / method body
+max-statements=50
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of boolean expressions in a if statement
+max-bool-expr=5
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "Exception"
+overgeneral-exceptions=Exception

.travis.yml

@@ -5,11 +5,12 @@ python:
   - "3.4"
   - "3.5"
 before_install:
-  - pip install coveralls pytest coverage mock
+  - pip install coveralls pytest coverage mock pylint
   - pip install git+https://github.com/kevin1024/vcrpy.git
 install:
   - pip install .
 script:
+  - pylint --rcfile .pylintrc -E rtv/
   - coverage run -m py.test -v
 after_success:
   - coveralls

rtv/content.py

@@ -76,7 +76,7 @@ class Content(object):
         if isinstance(comment, praw.objects.MoreComments):
             data['type'] = 'MoreComments'
             data['count'] = comment.count
-            data['body'] = 'More comments'.format(comment.count)
+            data['body'] = 'More comments'
         else:
             author = getattr(comment, 'author', '[deleted]')
             name = getattr(author, 'name', '[deleted]')
@@ -89,7 +89,7 @@ class Content(object):
             data['type'] = 'Comment'
             data['body'] = comment.body
             data['created'] = cls.humanize_timestamp(comment.created_utc)
-            data['score'] = '{} pts'.format(comment.score)
+            data['score'] = '{0} pts'.format(comment.score)
             data['author'] = name
             data['is_author'] = (name == sub_name)
             data['flair'] = flair
@@ -113,7 +113,7 @@ class Content(object):
         """
 
         reddit_link = re.compile(
-            'https?://(www\.)?(np\.)?redd(it\.com|\.it)/r/.*')
+            r'https?://(www\.)?(np\.)?redd(it\.com|\.it)/r/.*')
         author = getattr(sub, 'author', '[deleted]')
         name = getattr(author, 'name', '[deleted]')
         flair = getattr(sub, 'link_flair_text', '')
@@ -124,8 +124,8 @@ class Content(object):
         data['title'] = sub.title
         data['text'] = sub.selftext
         data['created'] = cls.humanize_timestamp(sub.created_utc)
-        data['comments'] = '{} comments'.format(sub.num_comments)
-        data['score'] = '{} pts'.format(sub.score)
+        data['comments'] = '{0} comments'.format(sub.num_comments)
+        data['score'] = '{0} pts'.format(sub.score)
         data['author'] = name
         data['permalink'] = sub.permalink
         data['subreddit'] = six.text_type(sub.subreddit)
@@ -137,17 +137,17 @@ class Content(object):
         data['index'] = None  # This is filled in later by the method caller
 
         if data['flair'] and not data['flair'].startswith('['):
-            data['flair'] = u'[{}]'.format(data['flair'].strip())
+            data['flair'] = u'[{0}]'.format(data['flair'].strip())
 
         url_full = data['url_full']
         if data['permalink'].split('/r/')[-1] == url_full.split('/r/')[-1]:
             data['url_type'] = 'selfpost'
-            data['url'] = 'self.{}'.format(data['subreddit'])
+            data['url'] = 'self.{0}'.format(data['subreddit'])
         elif reddit_link.match(url_full):
             data['url_type'] = 'x-post'
             # Strip the subreddit name from the permalink to avoid having
             # submission.subreddit.url make a separate API call
-            data['url'] = 'self.{}'.format(url_full.split('/')[4])
+            data['url'] = 'self.{0}'.format(url_full.split('/')[4])
         else:
             data['url_type'] = 'external'
             data['url'] = url_full
@@ -298,7 +298,7 @@ class SubmissionContent(Content):
             comment['cache'] = cache
             comment['count'] = count
             comment['level'] = data['level']
-            comment['body'] = 'Hidden'.format(count)
+            comment['body'] = 'Hidden'
             self._comment_data[index:index + len(cache)] = [comment]
 
         elif data['type'] == 'HiddenComment':
@@ -354,7 +354,7 @@ class SubredditContent(Content):
         if '/' in name:
             name, name_order = name.split('/')
             order = order or name_order
-        display_name = '/r/{}'.format(name)
+        display_name = '/r/{0}'.format(name)
 
         if order not in ['hot', 'top', 'rising', 'new', 'controversial', None]:
             raise exceptions.SubredditError('Unrecognized order "%s"' % order)

rtv/oauth.py

@@ -4,8 +4,8 @@ from __future__ import unicode_literals
 import time
 import uuid
 
-from tornado import gen, ioloop, web, httpserver
 from concurrent.futures import ThreadPoolExecutor
+from tornado import gen, ioloop, web, httpserver
 
 
 class OAuthHandler(web.RequestHandler):

rtv/page.py

@@ -46,11 +46,10 @@ class Page(object):
         self._content_window = None
         self._subwindows = None
 
-    def refresh_content(self, order=None):
+    def refresh_content(self, order=None, name=None):
         raise NotImplementedError
 
-    @staticmethod
-    def _draw_item(window, data, inverted):
+    def _draw_item(self, window, data, inverted):
         raise NotImplementedError
 
     def loop(self):

rtv/submission.py

@@ -48,11 +48,11 @@ class SubmissionPage(Page):
         self.active = False
 
     @SubmissionController.register(curses.KEY_F5, 'r')
-    def refresh_content(self, order=None):
+    def refresh_content(self, order=None, name=None):
         "Re-download comments and reset the page index"
 
         order = order or self.content.order
-        url = self.content.name
+        url = name or self.content.name
 
         with self.term.loader():
             self.content = SubmissionContent.from_url(
@@ -124,18 +124,18 @@ class SubmissionPage(Page):
         else:
             self.term.flash()
 
-    def _draw_item(self, win, data, inverted=False):
+    def _draw_item(self, win, data, inverted):
 
         if data['type'] == 'MoreComments':
             return self._draw_more_comments(win, data)
         elif data['type'] == 'HiddenComment':
             return self._draw_more_comments(win, data)
         elif data['type'] == 'Comment':
-            return self._draw_comment(win, data, inverted=inverted)
+            return self._draw_comment(win, data, inverted)
         else:
             return self._draw_submission(win, data)
 
-    def _draw_comment(self, win, data, inverted=False):
+    def _draw_comment(self, win, data, inverted):
 
         n_rows, n_cols = win.getmaxyx()
         n_cols -= 1
@@ -172,9 +172,9 @@ class SubmissionPage(Page):
         attr = Color.get_level(data['level'])
         x = 0
         for y in range(n_rows):
-            self.term.addch(win, y, x, curses.ACS_VLINE, attr)
+            self.term.addch(win, y, x, self.term.vline, attr)
 
-        return attr | curses.ACS_VLINE
+        return attr | self.term.vline
 
     def _draw_more_comments(self, win, data):
 
@@ -185,9 +185,9 @@ class SubmissionPage(Page):
         self.term.add_line(win, ' [{count}]'.format(**data), attr=curses.A_BOLD)
 
         attr = Color.get_level(data['level'])
-        self.term.addch(win, 0, 0, curses.ACS_VLINE, attr)
+        self.term.addch(win, 0, 0, self.term.vline, attr)
 
-        return attr | curses.ACS_VLINE
+        return attr | self.term.vline
 
     def _draw_submission(self, win, data):
 

rtv/subreddit.py

@@ -32,11 +32,11 @@ class SubredditPage(Page):
         self.nav = Navigator(self.content.get)
 
     @SubredditController.register(curses.KEY_F5, 'r')
-    def refresh_content(self, name=None, order=None):
+    def refresh_content(self, order=None, name=None):
         "Re-download all submissions and reset the page index"
 
-        name = name or self.content.name
         order = order or self.content.order
+        name = name or self.content.name
 
         # Hack to allow an order specified in the name by prompt_subreddit() to
         # override the current default
@@ -71,7 +71,7 @@ class SubredditPage(Page):
 
         name = self.term.prompt_input('Enter Subreddit: /r/')
         if name is not None:
-            self.refresh_content(name=name, order='ignore')
+            self.refresh_content(order='ignore', name=name)
 
     @SubredditController.register(curses.KEY_RIGHT, 'l')
     def open_submission(self, url=None):
@@ -161,10 +161,10 @@ class SubredditPage(Page):
         # When the user has chosen a subreddit in the subscriptions list,
         # refresh content with the selected subreddit
         if page.subreddit_data is not None:
-            self.refresh_content(name=page.subreddit_data['name'],
-                                 order='ignore')
+            self.refresh_content(order='ignore',
+                                 name=page.subreddit_data['name'])
 
-    def _draw_item(self, win, data, inverted=False):
+    def _draw_item(self, win, data, inverted):
 
         n_rows, n_cols = win.getmaxyx()
         n_cols -= 1  # Leave space for the cursor in the first column

rtv/subscription.py

@@ -24,7 +24,7 @@ class SubscriptionPage(Page):
         self.subreddit_data = None
 
     @SubscriptionController.register(curses.KEY_F5, 'r')
-    def refresh_content(self, order=None):
+    def refresh_content(self, order=None, name=None):
         "Re-download all subscriptions and reset the page index"
 
         # reddit.get_my_subreddits() does not support sorting by order

rtv/terminal.py

@@ -60,6 +60,10 @@ class Terminal(object):
         attr = curses.A_BOLD | Color.YELLOW
         return symbol, attr
 
+    @property
+    def vline(self):
+        return getattr(curses, 'ACS_VLINE', ord('|'))
+
     @property
     def display(self):
         """
@@ -229,7 +233,7 @@ class Terminal(object):
 
         n_rows, n_cols = self.stdscr.getmaxyx()
 
-        box_width = max(map(len, message)) + 2
+        box_width = max(len(m) for m in message) + 2
         box_height = len(message) + 2
 
         # Cut off the lines of the message that don't fit on the screen
@@ -291,9 +295,9 @@ class Terminal(object):
         if self.display:
             command = "import webbrowser; webbrowser.open_new_tab('%s')" % url
             args = [sys.executable, '-c', command]
-            null = open(os.devnull, 'ab+', 0)
+            with self.loader(message='Opening page in a new window'), \
+                    open(os.devnull, 'ab+', 0) as null:
                 p = subprocess.Popen(args, stdout=null, stderr=null)
-            with self.loader(message='Opening page in a new window'):
                 # Give the browser 5 seconds to open a new tab. Because the
                 # display is set, calling webbrowser should be non-blocking.
                 # If it blocks or returns an error, something went wrong.

tests/test_subreddit.py

@@ -46,7 +46,7 @@ def test_subreddit_refresh(subreddit_page, terminal):
     assert terminal.loader.exception is None
 
     # Refresh with the order in the name
-    subreddit_page.refresh_content(name='/r/front/hot', order='ignore')
+    subreddit_page.refresh_content(order='ignore', name='/r/front/hot')
     assert subreddit_page.content.order == 'hot'
     assert subreddit_page.content.name == '/r/front'
     assert terminal.loader.exception is None
@@ -132,13 +132,13 @@ def test_subreddit_post(subreddit_page, terminal, reddit, refresh_token):
     subreddit_page.oauth.authorize()
 
     # Post a submission to an invalid subreddit
-    subreddit_page.refresh_content('front')
+    subreddit_page.refresh_content(name='front')
     subreddit_page.controller.trigger('c')
     text = "Can't post to /r/front".encode('utf-8')
     terminal.stdscr.subwin.addstr.assert_called_with(1, 1, text)
 
     # Post a submission with a title but with no body
-    subreddit_page.refresh_content('python')
+    subreddit_page.refresh_content(name='python')
     with mock.patch.object(terminal, 'open_editor'):
         terminal.open_editor.return_value = 'title'
         subreddit_page.controller.trigger('c')

tox.ini

@@ -4,8 +4,10 @@ envlist = py27,py34
 [testenv]
 deps =
     pytest
+    pylint
     mock
     # Waiting for vcrpy to release https://github.com/kevin1024/vcrpy/pull/196
     git+https://github.com/kevin1024/vcrpy.git
 commands = 
+    pylint --rcfile .pylintrc rtv/ -E
     py.test -v {posargs}