Merge pull request #2390 from bdarnell/lint

Fix lint checks

.travis.yml

@@ -38,9 +38,9 @@ install:
     - travis_retry pip install codecov virtualenv
     # Create a separate no-dependencies virtualenv to make sure all imports
     # of optional-dependencies are guarded.
-    - virtualenv ./nodeps
-    - ./nodeps/bin/python -VV
-    - ./nodeps/bin/python setup.py install
+    - virtualenv /tmp/nodeps
+    - /tmp/nodeps/bin/python -VV
+    - /tmp/nodeps/bin/python setup.py install
     - curl-config --version; pip freeze
 
 script:
@@ -76,13 +76,13 @@ script:
     - if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then python $TARGET --resolver=tornado.platform.twisted.TwistedResolver; fi
     - if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then python $TARGET --ioloop=tornado.ioloop.PollIOLoop --ioloop_time_monotonic; fi
     #- if [[ $TRAVIS_PYTHON_VERSION != pypy* ]]; then python $TARGET --resolver=tornado.platform.caresresolver.CaresResolver; fi
-    - if [[ $TRAVIS_PYTHON_VERSION != 'pypy3' ]]; then ../nodeps/bin/python -m tornado.test.runtests; fi
+    - if [[ $TRAVIS_PYTHON_VERSION != 'pypy3' ]]; then /tmp/nodeps/bin/python -m tornado.test.runtests; fi
     # make coverage reports for Codecov to find
     - if [[ "$RUN_COVERAGE" == 1 ]]; then coverage xml; fi
     - export TORNADO_EXTENSION=0
     - if [[ $TRAVIS_PYTHON_VERSION == 3.6 ]]; then cd ../docs && mkdir sphinx-out && sphinx-build -E -n -W -b html . sphinx-out; fi
     - if [[ $TRAVIS_PYTHON_VERSION == 3.6 ]]; then cd ../docs && mkdir sphinx-doctest-out && sphinx-build -E -n -b doctest . sphinx-out; fi
-    - if [[ $TRAVIS_PYTHON_VERSION == '3.6' ]]; then flake8; fi
+    - if [[ $TRAVIS_PYTHON_VERSION == '3.6' ]]; then cd .. && flake8; fi
 
 after_success:
     # call codecov from project root

demos/blog/blog.py

@@ -130,7 +130,8 @@ async def prepare(self):
         # self.current_user in prepare instead.
         user_id = self.get_secure_cookie("blogdemo_user")
         if user_id:
-            self.current_user = await self.queryone("SELECT * FROM authors WHERE id = %s", int(user_id))
+            self.current_user = await self.queryone("SELECT * FROM authors WHERE id = %s",
+                                                    int(user_id))
 
     async def any_author_exists(self):
         return bool(await self.query("SELECT * FROM authors LIMIT 1"))

tornado/locks.py

@@ -459,7 +459,7 @@ class Lock(object):
     A Lock can be used as an async context manager with the ``async
     with`` statement:
 
-    >>> from tornado import gen, locks
+    >>> from tornado import locks
     >>> lock = locks.Lock()
     >>>
     >>> async def f():

tornado/web.py

@@ -542,9 +542,9 @@ def set_cookie(self, name, value, domain=None, expires=None, path="/",
 
         Newly-set cookies are not immediately visible via `get_cookie`;
         they are not present until the next request.
-        
+
         expires may be a numeric timestamp as returned by `time.time`,
-        a time tuple as returned by `time.gmtime`, or a 
+        a time tuple as returned by `time.gmtime`, or a
         `datetime.datetime` object.
 
         Additional keyword arguments are set on the cookies.Morsel

tornado/websocket.py

@@ -32,7 +32,7 @@
 from tornado import gen, httpclient, httputil
 from tornado.ioloop import IOLoop, PeriodicCallback
 from tornado.iostream import StreamClosedError
-from tornado.log import gen_log, app_log
+from tornado.log import gen_log
 from tornado import simple_httpclient
 from tornado.queues import Queue
 from tornado.tcpclient import TCPClient