[flake8] Resolving Q??? errors

setup.py

@@ -16,18 +16,18 @@ def get_git_sha():
         s = str(subprocess.check_output(['git', 'rev-parse', 'HEAD']))
         return s.strip()
     except Exception:
-        return ""
+        return ''
 
 
 GIT_SHA = get_git_sha()
 version_info = {
     'GIT_SHA': GIT_SHA,
     'version': version_string,
 }
-print("-==-" * 15)
-print("VERSION: " + version_string)
-print("GIT SHA: " + GIT_SHA)
-print("-==-" * 15)
+print('-==-' * 15)
+print('VERSION: ' + version_string)
+print('GIT SHA: ' + GIT_SHA)
+print('-==-' * 15)
 
 with open(os.path.join(PACKAGE_DIR, 'version_info.json'), 'w') as version_file:
     json.dump(version_info, version_file)
@@ -36,8 +36,8 @@ def get_git_sha():
 setup(
     name='superset',
     description=(
-        "A interactive data visualization platform build on SqlAlchemy "
-        "and druid.io"),
+        'A interactive data visualization platform build on SqlAlchemy '
+        'and druid.io'),
     version=version_string,
     packages=find_packages(),
     include_package_data=True,

superset/__init__.py

@@ -42,7 +42,7 @@ def parse_manifest_json():
         with open(MANIFEST_FILE, 'r') as f:
             manifest = json.load(f)
     except Exception:
-        print("no manifest file found at " + MANIFEST_FILE)
+        print('no manifest file found at ' + MANIFEST_FILE)
 
 
 def get_manifest_file(filename):
@@ -66,7 +66,7 @@ def get_js_manifest():
         print("Registering blueprint: '{}'".format(bp.name))
         app.register_blueprint(bp)
     except Exception as e:
-        print("blueprint registration failed")
+        print('blueprint registration failed')
         logging.exception(e)
 
 if conf.get('SILENCE_FAB'):
@@ -91,7 +91,7 @@ def get_js_manifest():
 cache = utils.setup_cache(app, conf.get('CACHE_CONFIG'))
 tables_cache = utils.setup_cache(app, conf.get('TABLE_NAMES_CACHE_CONFIG'))
 
-migrate = Migrate(app, db, directory=APP_DIR + "/migrations")
+migrate = Migrate(app, db, directory=APP_DIR + '/migrations')
 
 # Logging configuration
 logging.basicConfig(format=app.config.get('LOG_FORMAT'))
@@ -149,15 +149,15 @@ def index(self):
     db.session,
     base_template='superset/base.html',
     indexview=MyIndexView,
-    security_manager_class=app.config.get("CUSTOM_SECURITY_MANAGER"))
+    security_manager_class=app.config.get('CUSTOM_SECURITY_MANAGER'))
 
 sm = appbuilder.sm
 
-results_backend = app.config.get("RESULTS_BACKEND")
+results_backend = app.config.get('RESULTS_BACKEND')
 
 # Registering sources
-module_datasource_map = app.config.get("DEFAULT_MODULE_DS_MAP")
-module_datasource_map.update(app.config.get("ADDITIONAL_MODULE_DS_MAP"))
+module_datasource_map = app.config.get('DEFAULT_MODULE_DS_MAP')
+module_datasource_map.update(app.config.get('ADDITIONAL_MODULE_DS_MAP'))
 ConnectorRegistry.register_sources(module_datasource_map)
 
 from superset import views  # noqa

superset/cli.py

@@ -29,38 +29,38 @@ def init():
 
 @manager.option(
     '-d', '--debug', action='store_true',
-    help="Start the web server in debug mode")
+    help='Start the web server in debug mode')
 @manager.option(
     '-n', '--no-reload', action='store_false', dest='no_reload',
-    default=config.get("FLASK_USE_RELOAD"),
+    default=config.get('FLASK_USE_RELOAD'),
     help="Don't use the reloader in debug mode")
 @manager.option(
-    '-a', '--address', default=config.get("SUPERSET_WEBSERVER_ADDRESS"),
-    help="Specify the address to which to bind the web server")
+    '-a', '--address', default=config.get('SUPERSET_WEBSERVER_ADDRESS'),
+    help='Specify the address to which to bind the web server')
 @manager.option(
-    '-p', '--port', default=config.get("SUPERSET_WEBSERVER_PORT"),
-    help="Specify the port on which to run the web server")
+    '-p', '--port', default=config.get('SUPERSET_WEBSERVER_PORT'),
+    help='Specify the port on which to run the web server')
 @manager.option(
     '-w', '--workers',
-    default=config.get("SUPERSET_WORKERS", 2),
-    help="Number of gunicorn web server workers to fire up")
+    default=config.get('SUPERSET_WORKERS', 2),
+    help='Number of gunicorn web server workers to fire up')
 @manager.option(
-    '-t', '--timeout', default=config.get("SUPERSET_WEBSERVER_TIMEOUT"),
-    help="Specify the timeout (seconds) for the gunicorn web server")
+    '-t', '--timeout', default=config.get('SUPERSET_WEBSERVER_TIMEOUT'),
+    help='Specify the timeout (seconds) for the gunicorn web server')
 @manager.option(
-    '-s', '--socket', default=config.get("SUPERSET_WEBSERVER_SOCKET"),
-    help="Path to a UNIX socket as an alternative to address:port, e.g. "
-         "/var/run/superset.sock. "
-         "Will override the address and port values.")
+    '-s', '--socket', default=config.get('SUPERSET_WEBSERVER_SOCKET'),
+    help='Path to a UNIX socket as an alternative to address:port, e.g. '
+         '/var/run/superset.sock. '
+         'Will override the address and port values.')
 def runserver(debug, no_reload, address, port, timeout, workers, socket):
     """Starts a Superset web server."""
-    debug = debug or config.get("DEBUG")
+    debug = debug or config.get('DEBUG')
     if debug:
         print(Fore.BLUE + '-=' * 20)
         print(
-            Fore.YELLOW + "Starting Superset server in " +
-            Fore.RED + "DEBUG" +
-            Fore.YELLOW + " mode")
+            Fore.YELLOW + 'Starting Superset server in ' +
+            Fore.RED + 'DEBUG' +
+            Fore.YELLOW + ' mode')
         print(Fore.BLUE + '-=' * 20)
         print(Style.RESET_ALL)
         app.run(
@@ -70,86 +70,86 @@ def runserver(debug, no_reload, address, port, timeout, workers, socket):
             debug=True,
             use_reloader=no_reload)
     else:
-        addr_str = " unix:{socket} " if socket else" {address}:{port} "
+        addr_str = ' unix:{socket} ' if socket else' {address}:{port} '
         cmd = (
-            "gunicorn "
-            "-w {workers} "
-            "--timeout {timeout} "
-            "-b " + addr_str +
-            "--limit-request-line 0 "
-            "--limit-request-field_size 0 "
-            "superset:app").format(**locals())
-        print(Fore.GREEN + "Starting server with command: ")
+            'gunicorn '
+            '-w {workers} '
+            '--timeout {timeout} '
+            '-b ' + addr_str +
+            '--limit-request-line 0 '
+            '--limit-request-field_size 0 '
+            'superset:app').format(**locals())
+        print(Fore.GREEN + 'Starting server with command: ')
         print(Fore.YELLOW + cmd)
         print(Style.RESET_ALL)
         Popen(cmd, shell=True).wait()
 
 
 @manager.option(
     '-v', '--verbose', action='store_true',
-    help="Show extra information")
+    help='Show extra information')
 def version(verbose):
     """Prints the current version number"""
     print(Fore.BLUE + '-=' * 15)
-    print(Fore.YELLOW + "Superset " + Fore.CYAN + "{version}".format(
+    print(Fore.YELLOW + 'Superset ' + Fore.CYAN + '{version}'.format(
         version=config.get('VERSION_STRING')))
     print(Fore.BLUE + '-=' * 15)
     if verbose:
-        print("[DB] : " + "{}".format(db.engine))
+        print('[DB] : ' + '{}'.format(db.engine))
     print(Style.RESET_ALL)
 
 
 @manager.option(
     '-t', '--load-test-data', action='store_true',
-    help="Load additional test data")
+    help='Load additional test data')
 def load_examples(load_test_data):
     """Loads a set of Slices and Dashboards and a supporting dataset """
     from superset import data
-    print("Loading examples into {}".format(db))
+    print('Loading examples into {}'.format(db))
 
     data.load_css_templates()
 
-    print("Loading energy related dataset")
+    print('Loading energy related dataset')
     data.load_energy()
 
     print("Loading [World Bank's Health Nutrition and Population Stats]")
     data.load_world_bank_health_n_pop()
 
-    print("Loading [Birth names]")
+    print('Loading [Birth names]')
     data.load_birth_names()
 
-    print("Loading [Random time series data]")
+    print('Loading [Random time series data]')
     data.load_random_time_series_data()
 
-    print("Loading [Random long/lat data]")
+    print('Loading [Random long/lat data]')
     data.load_long_lat_data()
 
-    print("Loading [Country Map data]")
+    print('Loading [Country Map data]')
     data.load_country_map_data()
 
-    print("Loading [Multiformat time series]")
+    print('Loading [Multiformat time series]')
     data.load_multiformat_time_series_data()
 
-    print("Loading [Misc Charts] dashboard")
+    print('Loading [Misc Charts] dashboard')
     data.load_misc_dashboard()
 
     if load_test_data:
-        print("Loading [Unicode test data]")
+        print('Loading [Unicode test data]')
         data.load_unicode_test_data()
 
 
 @manager.option(
     '-d', '--datasource',
     help=(
-        "Specify which datasource name to load, if omitted, all "
-        "datasources will be refreshed"
+        'Specify which datasource name to load, if omitted, all '
+        'datasources will be refreshed'
     ),
 )
 @manager.option(
     '-m', '--merge',
     help=(
         "Specify using 'merge' property during operation. "
-        "Default value is False "
+        'Default value is False '
     ),
 )
 def refresh_druid(datasource, merge):
@@ -167,8 +167,8 @@ def refresh_druid(datasource, merge):
             logging.exception(e)
         cluster.metadata_last_refreshed = datetime.now()
         print(
-            "Refreshed metadata from cluster "
-            "[" + cluster.cluster_name + "]")
+            'Refreshed metadata from cluster '
+            '[' + cluster.cluster_name + ']')
     session.commit()
 
 
@@ -188,14 +188,14 @@ def update_datasources_cache():
 @manager.option(
     '-w', '--workers',
     type=int,
-    help="Number of celery server workers to fire up")
+    help='Number of celery server workers to fire up')
 def worker(workers):
     """Starts a Superset worker for async SQL query execution."""
     if workers:
         celery_app.conf.update(CELERYD_CONCURRENCY=workers)
-    elif config.get("SUPERSET_CELERY_WORKERS"):
+    elif config.get('SUPERSET_CELERY_WORKERS'):
         celery_app.conf.update(
-            CELERYD_CONCURRENCY=config.get("SUPERSET_CELERY_WORKERS"))
+            CELERYD_CONCURRENCY=config.get('SUPERSET_CELERY_WORKERS'))
 
     worker = celery_app.Worker(optimization='fair')
     worker.start()
@@ -216,12 +216,12 @@ def flower(port, address):
     broker"""
     BROKER_URL = celery_app.conf.BROKER_URL
     cmd = (
-        "celery flower "
-        "--broker={BROKER_URL} "
-        "--port={port} "
-        "--address={address} "
+        'celery flower '
+        '--broker={BROKER_URL} '
+        '--port={port} '
+        '--address={address} '
     ).format(**locals())
-    print(Fore.GREEN + "Starting a Celery Flower instance")
+    print(Fore.GREEN + 'Starting a Celery Flower instance')
     print(Fore.BLUE + '-=' * 40)
     print(Fore.YELLOW + cmd)
     print(Fore.BLUE + '-=' * 40)

superset/config.py

@@ -92,10 +92,10 @@
 # GLOBALS FOR APP Builder
 # ------------------------------
 # Uncomment to setup Your App name
-APP_NAME = "Superset"
+APP_NAME = 'Superset'
 
 # Uncomment to setup an App icon
-APP_ICON = "/static/assets/images/superset-logo@2x.png"
+APP_ICON = '/static/assets/images/superset-logo@2x.png'
 
 # Druid query timezone
 # tz.tzutc() : Using utc timezone
@@ -239,7 +239,7 @@
 BACKUP_COUNT = 30
 
 # Set this API key to enable Mapbox visualizations
-MAPBOX_API_KEY = ""
+MAPBOX_API_KEY = ''
 
 # Maximum number of rows returned in the SQL editor
 SQL_MAX_ROW = 1000000
@@ -329,7 +329,7 @@ class CeleryConfig(object):
 
 # The link to a page containing common errors and their resolutions
 # It will be appended at the bottom of sql_lab errors.
-TROUBLESHOOTING_LINK = ""
+TROUBLESHOOTING_LINK = ''
 
 
 # Integrate external Blueprints to the app by passing them to your

superset/connectors/base/models.py

@@ -60,7 +60,7 @@ def slices(self):
     @property
     def uid(self):
         """Unique id across datasource types"""
-        return "{self.id}__{self.type}".format(**locals())
+        return '{self.id}__{self.type}'.format(**locals())
 
     @property
     def column_names(self):
@@ -72,7 +72,7 @@ def columns_types(self):
 
     @property
     def main_dttm_col(self):
-        return "timestamp"
+        return 'timestamp'
 
     @property
     def connection(self):
@@ -105,7 +105,7 @@ def explore_url(self):
         if self.default_endpoint:
             return self.default_endpoint
         else:
-            return "/superset/explore/{obj.type}/{obj.id}/".format(obj=self)
+            return '/superset/explore/{obj.type}/{obj.id}/'.format(obj=self)
 
     @property
     def column_formats(self):

superset/connectors/base/views.py

@@ -8,6 +8,6 @@ class DatasourceModelView(SupersetModelView):
     def pre_delete(self, obj):
         if obj.slices:
             raise SupersetException(Markup(
-                "Cannot delete a datasource that has slices attached to it."
+                'Cannot delete a datasource that has slices attached to it.'
                 "Here's the list of associated slices: " +
-                "".join([o.slice_link for o in obj.slices])))
+                ''.join([o.slice_link for o in obj.slices])))