Pep8 cleanups (#429)

* PEP8 cleanups

* PEP8 cleanups (server.py)

* PEP8 cleanups (blueprints.py)

* PEP8 cleanups (config.py)

* PEP8 cleanups (cookies.py)

* PEP8 cleanups (handlers.py)

* PEP8 cleanups (request.py)

* PEP8 cleanups (response.py)

* PEP8 cleanups (router.py)

* PEP8 cleanups (sanic.py) #2

* PEP8 cleanups (server.py) #2

* PEP8 cleanups (static.py)

* PEP8 cleanups (utils.py)

* PEP8 cleanups (views.py)
Updated docstring

sanic/blueprints.py

@@ -13,9 +13,9 @@ FutureStatic = namedtuple('Route',
 
 class Blueprint:
     def __init__(self, name, url_prefix=None, host=None):
-        """
+        """Create a new blueprint
-        Creates a new blueprint
+
-        :param name: Unique name of the blueprint
+        :param name: unique name of the blueprint
         :param url_prefix: URL to be prefixed before all route URLs
         """
         self.name = name
@@ -29,9 +29,7 @@ class Blueprint:
         self.statics = []
 
     def register(self, app, options):
-        """
+        """Register the blueprint to the sanic app."""
-        Registers the blueprint to the sanic app.
-        """
 
         url_prefix = options.get('url_prefix', self.url_prefix)
 
@@ -73,10 +71,10 @@ class Blueprint:
                 app.listener(event)(listener)
 
     def route(self, uri, methods=frozenset({'GET'}), host=None):
-        """
+        """Create a blueprint route from a decorated function.
-        Creates a blueprint route from a decorated function.
+
-        :param uri: Endpoint at which the route will be accessible.
+        :param uri: endpoint at which the route will be accessible.
-        :param methods: List of acceptable HTTP methods.
+        :param methods: list of acceptable HTTP methods.
         """
         def decorator(handler):
             route = FutureRoute(handler, uri, methods, host)
@@ -85,12 +83,12 @@ class Blueprint:
         return decorator
 
     def add_route(self, handler, uri, methods=frozenset({'GET'}), host=None):
-        """
+        """Create a blueprint route from a function.
-        Creates a blueprint route from a function.
+
-        :param handler: Function for handling uri requests. Accepts function,
+        :param handler: function for handling uri requests. Accepts function,
                         or class instance with a view_class method.
-        :param uri: Endpoint at which the route will be accessible.
+        :param uri: endpoint at which the route will be accessible.
-        :param methods: List of acceptable HTTP methods.
+        :param methods: list of acceptable HTTP methods.
         :return: function or class instance
         """
         # Handle HTTPMethodView differently
@@ -109,8 +107,8 @@ class Blueprint:
         return handler
 
     def listener(self, event):
-        """
+        """Create a listener from a decorated function.
-        Create a listener from a decorated function.
+
         :param event: Event to listen to.
         """
         def decorator(listener):
@@ -119,9 +117,7 @@ class Blueprint:
         return decorator
 
     def middleware(self, *args, **kwargs):
-        """
+        """Create a blueprint middleware from a decorated function."""
-        Creates a blueprint middleware from a decorated function.
-        """
         def register_middleware(_middleware):
             future_middleware = FutureMiddleware(_middleware, args, kwargs)
             self.middlewares.append(future_middleware)
@@ -136,9 +132,7 @@ class Blueprint:
             return register_middleware
 
     def exception(self, *args, **kwargs):
-        """
+        """Create a blueprint exception from a decorated function."""
-        Creates a blueprint exception from a decorated function.
-        """
         def decorator(handler):
             exception = FutureException(handler, args, kwargs)
             self.exceptions.append(exception)
@@ -146,9 +140,9 @@ class Blueprint:
         return decorator
 
     def static(self, uri, file_or_directory, *args, **kwargs):
-        """
+        """Create a blueprint static route from a decorated function.
-        Creates a blueprint static route from a decorated function.
+
-        :param uri: Endpoint at which the route will be accessible.
+        :param uri: endpoint at which the route will be accessible.
         :param file_or_directory: Static asset.
         """
         static = FutureStatic(uri, file_or_directory, args, kwargs)

sanic/config.py

@@ -39,8 +39,9 @@ class Config(dict):
         self[attr] = value
 
     def from_envvar(self, variable_name):
-        """Loads a configuration from an environment variable pointing to
+        """Load a configuration from an environment variable pointing to
         a configuration file.
+
         :param variable_name: name of the environment variable
         :return: bool. ``True`` if able to load config, ``False`` otherwise.
         """
@@ -52,8 +53,9 @@ class Config(dict):
         return self.from_pyfile(config_file)
 
     def from_pyfile(self, filename):
-        """Updates the values in the config from a Python file. Only the uppercase
+        """Update the values in the config from a Python file.
-        variables in that module are stored in the config.
+        Only the uppercase variables in that module are stored in the config.
+
         :param filename: an absolute path to the config file
         """
         module = types.ModuleType('config')
@@ -69,7 +71,7 @@ class Config(dict):
         return True
 
     def from_object(self, obj):
-        """Updates the values from the given object.
+        """Update the values from the given object.
         Objects are usually either modules or classes.
 
         Just the uppercase variables in that object are stored in the config.

sanic/cookies.py

@@ -39,8 +39,7 @@ _is_legal_key = re.compile('[%s]+' % re.escape(_LegalChars)).fullmatch
 
 
 class CookieJar(dict):
-    """
+    """CookieJar dynamically writes headers as cookies are added and removed
-    CookieJar dynamically writes headers as cookies are added and removed
     It gets around the limitation of one header per name by using the
     MultiHeader class to provide a unique key that encodes to Set-Cookie.
     """
@@ -75,9 +74,7 @@ class CookieJar(dict):
 
 
 class Cookie(dict):
-    """
+    """A stripped down version of Morsel from SimpleCookie #gottagofast"""
-    This is a stripped down version of Morsel from SimpleCookie #gottagofast
-    """
     _keys = {
         "expires": "expires",
         "path": "Path",
@@ -128,9 +125,8 @@ class Cookie(dict):
 
 
 class MultiHeader:
-    """
+    """String-holding object which allow us to set a header within response
-    Allows us to set a header within response that has a unique key,
+    that has a unique key, but may contain duplicate header names
-    but may contain duplicate header names
     """
     def __init__(self, name):
         self.name = name

sanic/handlers.py

@@ -35,8 +35,8 @@ class ErrorHandler:
         self.handlers[exception] = handler
 
     def response(self, request, exception):
-        """
+        """Fetches and executes an exception handler and returns a response
-        Fetches and executes an exception handler and returns a response object
+        object
 
         :param request: Request
         :param exception: Exception to handle
@@ -79,9 +79,7 @@ class ErrorHandler:
 
 
 class ContentRangeHandler:
-    """
+    """Class responsible for parsing request header"""
-    This class is for parsing the request header
-    """
     __slots__ = ('start', 'end', 'size', 'total', 'headers')
 
     def __init__(self, request, stats):

sanic/request.py

@@ -16,8 +16,7 @@ DEFAULT_HTTP_CONTENT_TYPE = "application/octet-stream"
 
 
 class RequestParameters(dict):
-    """
+    """Hosts a dict with lists as values where get returns the first
-    Hosts a dict with lists as values where get returns the first
     value of the list and getlist returns the whole shebang
     """
 
@@ -31,9 +30,7 @@ class RequestParameters(dict):
 
 
 class Request(dict):
-    """
+    """Properties of an HTTP request such as URL, headers, etc."""
-    Properties of an HTTP request such as URL, headers, etc.
-    """
     __slots__ = (
         'url', 'headers', 'version', 'method', '_cookies', 'transport',
         'query_string', 'body',
@@ -73,8 +70,8 @@ class Request(dict):
 
     @property
     def token(self):
-        """
+        """Attempt to return the auth header token.
-        Attempts to return the auth header token.
+
         :return: token related to request
         """
         auth_header = self.headers.get('Authorization')
@@ -146,11 +143,10 @@ File = namedtuple('File', ['type', 'body', 'name'])
 
 
 def parse_multipart_form(body, boundary):
-    """
+    """Parse a request body and returns fields and files
-    Parses a request body and returns fields and files
 
-    :param body: Bytes request body
+    :param body: bytes request body
-    :param boundary: Bytes multipart boundary
+    :param boundary: bytes multipart boundary
     :return: fields (RequestParameters), files (RequestParameters)
     """
     files = RequestParameters()

sanic/response.py

@@ -177,8 +177,8 @@ def html(body, status=200, headers=None):
 
 
 async def file(location, mime_type=None, headers=None, _range=None):
-    """
+    """Return a response object with file data.
-    Returns response object with file data.
+
     :param location: Location of file on system.
     :param mime_type: Specific mime_type.
     :param headers: Custom Headers.
@@ -205,14 +205,12 @@ async def file(location, mime_type=None, headers=None, _range=None):
 
 def redirect(to, headers=None, status=302,
              content_type="text/html; charset=utf-8"):
-    """
+    """Abort execution and cause a 302 redirect (by default).
-    Aborts execution and causes a 302 redirect (by default).
 
     :param to: path or fully qualified URL to redirect to
     :param headers: optional dict of headers to include in the new request
     :param status: status code (int) of the new request, defaults to 302
-    :param content_type:
+    :param content_type: the content type (string) of the response
-        the content type (string) of the response
     :returns: the redirecting Response
     """
     headers = headers or {}

sanic/router.py

@@ -32,8 +32,7 @@ class RouteDoesNotExist(Exception):
 
 
 class Router:
-    """
+    """Router supports basic routing with parameters and method checks
-    Router supports basic routing with parameters and method checks
 
     Usage:
 
@@ -71,8 +70,9 @@ class Router:
         self.hosts = None
 
     def parse_parameter_string(self, parameter_string):
-        """
+        """Parse a parameter string into its constituent name, type, and
-        Parse a parameter string into its constituent name, type, and pattern
+        pattern
+
         For example:
         `parse_parameter_string('<param_one:[A-z]')` ->
             ('param_one', str, '[A-z]')
@@ -94,13 +94,12 @@ class Router:
         return name, _type, pattern
 
     def add(self, uri, methods, handler, host=None):
-        """
+        """Add a handler to the route list
-        Adds a handler to the route list
 
-        :param uri: Path to match
+        :param uri: path to match
-        :param methods: Array of accepted method names.
+        :param methods: sequence of accepted method names. If none are
-                        If none are provided, any method is allowed
+            provided, any method is allowed
-        :param handler: Request handler function.
+        :param handler: request handler function.
             When executed, it should provide a response object.
         :return: Nothing
         """
@@ -239,8 +238,7 @@ class Router:
 
     @lru_cache(maxsize=ROUTER_CACHE_SIZE)
     def find_route_by_view_name(self, view_name):
-        """
+        """Find a route in the router based on the specified view name.
-        Find a route in the router based on the specified view name.
 
         :param view_name: string of view name to search by
         :return: tuple containing (uri, Route)
@@ -255,8 +253,7 @@ class Router:
         return (None, None)
 
     def get(self, request):
-        """
+        """Get a request handler based on the URL of the request, or raises an
-        Gets a request handler based on the URL of the request, or raises an
         error
 
         :param request: Request object
@@ -270,11 +267,11 @@ class Router:
 
     @lru_cache(maxsize=ROUTER_CACHE_SIZE)
     def _get(self, url, method, host):
-        """
+        """Get a request handler based on the URL of the request, or raises an
-        Gets a request handler based on the URL of the request, or raises an
         error.  Internal method for caching.
-        :param url: Request URL
+
-        :param method: Request method
+        :param url: request URL
+        :param method: request method
         :return: handler, arguments, keyword arguments
         """
         url = host + url

sanic/sanic.py

@@ -22,8 +22,7 @@ from .views import CompositionView
 
 class Sanic:
 
-    def __init__(self, name=None, router=None,
+    def __init__(self, name=None, router=None, error_handler=None):
-                 error_handler=None):
         # Only set up a default log handler if the
         # end-user application didn't set anything up.
         if not logging.root.handlers and log.level == logging.NOTSET:
@@ -33,9 +32,12 @@ class Sanic:
             handler.setFormatter(formatter)
             log.addHandler(handler)
             log.setLevel(logging.INFO)
+
+        # Get name from previous stack frame
         if name is None:
             frame_records = stack()[1]
             name = getmodulename(frame_records[1])
+
         self.name = name
         self.router = router or Router()
         self.error_handler = error_handler or ErrorHandler()
@@ -53,9 +55,7 @@ class Sanic:
 
     @property
     def loop(self):
-        """
+        """Synonymous with asyncio.get_event_loop()."""
-        Synonymous with asyncio.get_event_loop()
-        """
         return get_event_loop()
 
     # -------------------------------------------------------------------- #
@@ -63,13 +63,12 @@ class Sanic:
     # -------------------------------------------------------------------- #
 
     def add_task(self, task):
-        """
+        """Schedule a task to run later, after the loop has started.
-        Schedule a task to run later, after the loop has started.
         Different from asyncio.ensure_future in that it does not
         also return a future, and the actual ensure_future call
         is delayed until before server start.
 
-        :param task: A future, couroutine or awaitable.
+        :param task: future, couroutine or awaitable
         """
         @self.listener('before_server_start')
         def run(app, loop):
@@ -80,10 +79,9 @@ class Sanic:
 
     # Decorator
     def listener(self, event):
-        """
+        """Create a listener from a decorated function.
-        Create a listener from a decorated function.
 
-        :param event: Event to listen to.
+        :param event: event to listen to
         """
         def decorator(listener):
             self.listeners[event].append(listener)
@@ -92,8 +90,7 @@ class Sanic:
 
     # Decorator
     def route(self, uri, methods=frozenset({'GET'}), host=None):
-        """
+        """Decorate a function to be registered as a route
-        Decorates a function to be registered as a route
 
         :param uri: path of the URL
         :param methods: list or tuple of methods allowed
@@ -136,8 +133,7 @@ class Sanic:
         return self.route(uri, methods=frozenset({"DELETE"}), host=host)
 
     def add_route(self, handler, uri, methods=frozenset({'GET'}), host=None):
-        """
+        """A helper method to register class instance or
-        A helper method to register class instance or
         functions as a handler to the application url
         routes.
 
@@ -168,8 +164,7 @@ class Sanic:
 
     # Decorator
     def exception(self, *exceptions):
-        """
+        """Decorate a function to be registered as a handler for exceptions
-        Decorates a function to be registered as a handler for exceptions
 
         :param exceptions: exceptions
         :return: decorated function
@@ -184,9 +179,8 @@ class Sanic:
 
     # Decorator
     def middleware(self, middleware_or_request):
-        """
+        """Decorate and register middleware to be called before a request.
-        Decorates and registers middleware to be called before a request
+        Can either be called as @app.middleware or @app.middleware('request')
-        can either be called as @app.middleware or @app.middleware('request')
         """
         def register_middleware(middleware, attach_to='request'):
             if attach_to == 'request':
@@ -206,16 +200,14 @@ class Sanic:
     # Static Files
     def static(self, uri, file_or_directory, pattern='.+',
                use_modified_since=True, use_content_range=False):
-        """
+        """Register a root to serve files from. The input can either be a
-        Registers a root to serve files from.  The input can either be a file
+        file or a directory. See
-        or a directory.  See
         """
         static_register(self, uri, file_or_directory, pattern,
                         use_modified_since, use_content_range)
 
     def blueprint(self, blueprint, **options):
-        """
+        """Register a blueprint on the application.
-        Registers a blueprint on the application.
 
         :param blueprint: Blueprint object
         :param options: option dictionary with blueprint defaults
@@ -242,7 +234,7 @@ class Sanic:
         return self.blueprint(*args, **kwargs)
 
     def url_for(self, view_name: str, **kwargs):
-        """Builds a URL based on a view name and the values provided.
+        """Build a URL based on a view name and the values provided.
 
         In order to build a URL, all request parameters must be supplied as
         keyword arguments, and each parameter must pass the test for the
@@ -252,7 +244,7 @@ class Sanic:
         Keyword arguments that are not request parameters will be included in
         the output URL's query string.
 
-        :param view_name: A string referencing the view name
+        :param view_name: string referencing the view name
         :param **kwargs: keys and values that are used to build request
             parameters and query string arguments.
 
@@ -342,9 +334,8 @@ class Sanic:
         pass
 
     async def handle_request(self, request, response_callback):
-        """
+        """Take a request from the HTTP Server and return a response object
-        Takes a request from the HTTP Server and returns a response object to
+        to be sent back The HTTP Server only expects a response object, so
-        be sent back The HTTP Server only expects a response object, so
         exception handling must be done here
 
         :param request: HTTP Request object
@@ -426,9 +417,8 @@ class Sanic:
             after_start=None, before_stop=None, after_stop=None, ssl=None,
             sock=None, workers=1, loop=None, protocol=HttpProtocol,
             backlog=100, stop_event=None, register_sys_signals=True):
-        """
+        """Run the HTTP Server and listen until keyboard interrupt or term
-        Runs the HTTP Server and listens until keyboard interrupt or term
+        signal. On termination, drain connections before closing.
-        signal. On termination, drains connections before closing.
 
         :param host: Address to host on
         :param port: Port to host on
@@ -478,9 +468,7 @@ class Sanic:
                             before_stop=None, after_stop=None, ssl=None,
                             sock=None, loop=None, protocol=HttpProtocol,
                             backlog=100, stop_event=None):
-        """
+        """Asynchronous version of `run`."""
-        Asynchronous version of `run`.
-        """
         server_settings = self._helper(
             host=host, port=port, debug=debug, before_start=before_start,
             after_start=after_start, before_stop=before_stop,
@@ -501,9 +489,7 @@ class Sanic:
                 after_stop=None, ssl=None, sock=None, workers=1, loop=None,
                 protocol=HttpProtocol, backlog=100, stop_event=None,
                 register_sys_signals=True, run_async=False):
-        """
+        """Helper function used by `run` and `create_server`."""
-        Helper function used by `run` and `create_server`.
-        """
 
         if loop is not None:
             if debug:

sanic/server.py

@@ -33,8 +33,7 @@ class Signal:
 
 
 class CIDict(dict):
-    """
+    """Case Insensitive dict where all keys are converted to lowercase
-    Case Insensitive dict where all keys are converted to lowercase
     This does not maintain the inputted case when calling items() or keys()
     in favor of speed, since headers are case insensitive
     """
@@ -228,8 +227,8 @@ class HttpProtocol(asyncio.Protocol):
         self._total_request_size = 0
 
     def close_if_idle(self):
-        """
+        """Close the connection if a request is not being sent or received
-        Close the connection if a request is not being sent or received
+
         :return: boolean - True if closed, false if staying open
         """
         if not self.parser:
@@ -239,9 +238,8 @@ class HttpProtocol(asyncio.Protocol):
 
 
 def update_current_time(loop):
-    """
+    """Cache the current time, since it is needed at the end of every
-    Caches the current time, since it is needed
+    keep-alive request to update the request timeout time
-    at the end of every keep-alive request to update the request timeout time
 
     :param loop:
     :return:
@@ -252,7 +250,8 @@ def update_current_time(loop):
 
 
 def trigger_events(events, loop):
-    """
+    """Trigger event callbacks (functions or async)
+
     :param events: one or more sync or async functions to execute
     :param loop: event loop
     """
@@ -267,31 +266,30 @@ def serve(host, port, request_handler, error_handler, before_start=None,
           request_timeout=60, ssl=None, sock=None, request_max_size=None,
           reuse_port=False, loop=None, protocol=HttpProtocol, backlog=100,
           register_sys_signals=True, run_async=False):
-    """
+    """Start asynchronous HTTP Server on an individual process.
-    Starts asynchronous HTTP Server on an individual process.
 
     :param host: Address to host on
     :param port: Port to host on
     :param request_handler: Sanic request handler with middleware
     :param error_handler: Sanic error handler with middleware
-    :param before_start: Function to be executed before the server starts
+    :param before_start: function to be executed before the server starts
                          listening. Takes arguments `app` instance and `loop`
-    :param after_start: Function to be executed after the server starts
+    :param after_start: function to be executed after the server starts
                         listening. Takes  arguments `app` instance and `loop`
-    :param before_stop: Function to be executed when a stop signal is
+    :param before_stop: function to be executed when a stop signal is
                         received before it is respected. Takes arguments
                         `app` instance and `loop`
-    :param after_stop: Function to be executed when a stop signal is
+    :param after_stop: function to be executed when a stop signal is
                        received after it is respected. Takes arguments
                         `app` instance and `loop`
-    :param debug: Enables debug output (slows server)
+    :param debug: enables debug output (slows server)
     :param request_timeout: time in seconds
     :param ssl: SSLContext
     :param sock: Socket for the server to accept connections from
     :param request_max_size: size in bytes, `None` for no limit
     :param reuse_port: `True` for multiple workers
     :param loop: asyncio compatible event loop
-    :param protocol: Subclass of asyncio protocol class
+    :param protocol: subclass of asyncio protocol class
     :return: Nothing
     """
     if not run_async:
@@ -377,9 +375,8 @@ def serve(host, port, request_handler, error_handler, before_start=None,
 
 
 def serve_multiple(server_settings, workers, stop_event=None):
-    """
+    """Start multiple server processes simultaneously.  Stop on interrupt
-    Starts multiple server processes simultaneously.  Stops on interrupt
+    and terminate signals, and drain connections when complete.
-    and terminate signals, and drains connections when complete.
 
     :param server_settings: kw arguments to be passed to the serve function
     :param workers: number of workers to launch

sanic/static.py

@@ -18,7 +18,7 @@ def register(app, uri, file_or_directory, pattern,
     #       make a good effort here.  Modified-since is nice, but we could
     #       also look into etags, expires, and caching
     """
-    Registers a static directory handler with Sanic by adding a route to the
+    Register a static directory handler with Sanic by adding a route to the
     router and registering a handler.
 
     :param app: Sanic

sanic/utils.py

@@ -21,8 +21,8 @@ async def local_request(method, uri, cookies=None, *args, **kwargs):
 
 
 def sanic_endpoint_test(app, method='get', uri='/', gather_request=True,
-                        debug=False, server_kwargs={},
+                        debug=False, server_kwargs={}, *request_args,
-                        *request_args, **request_kwargs):
+                        **request_kwargs):
     results = [None, None]
     exceptions = []
 

sanic/views.py

@@ -3,7 +3,7 @@ from .constants import HTTP_METHODS
 
 
 class HTTPMethodView:
-    """ Simple class based implementation of view for the sanic.
+    """Simple class based implementation of view for the sanic.
     You should implement methods (get, post, put, patch, delete) for the class
     to every HTTP method you want to support.
 
@@ -45,9 +45,8 @@ class HTTPMethodView:
 
     @classmethod
     def as_view(cls, *class_args, **class_kwargs):
-        """ Converts the class into an actual view function that can be used
+        """Return view function for use with the routing system, that
-        with the routing system.
+        dispatches request to appropriate handler method.
-
         """
         def view(*args, **kwargs):
             self = view.view_class(*class_args, **class_kwargs)
@@ -66,7 +65,7 @@ class HTTPMethodView:
 
 
 class CompositionView:
-    """ Simple method-function mapped view for the sanic.
+    """Simple method-function mapped view for the sanic.
     You can add handler functions to methods (get, post, put, patch, delete)
     for every HTTP method you want to support.