Bump black to 20.8b1 (and reformat) (#4371)

* Bump black version

* Reformat with black

redbot/core/bot.py

@@ -1422,8 +1422,10 @@ class RedBase(
         await self._red_ready.wait()
 
     async def _delete_delay(self, ctx: commands.Context):
-        """Currently used for:
-            * delete delay"""
+        """
+        Currently used for:
+          * delete delay
+        """
         guild = ctx.guild
         if guild is None:
             return

redbot/core/cli.py

@@ -235,7 +235,7 @@ def parse_cli_flags(args):
         help="Set the maximum number of messages to store in the internal message cache.",
     )
     parser.add_argument(
-        "--no-message-cache", action="store_true", help="Disable the internal message cache.",
+        "--no-message-cache", action="store_true", help="Disable the internal message cache."
     )
 
     args = parser.parse_args(args)

redbot/core/commands/commands.py

@@ -1026,7 +1026,7 @@ class Cog(CogMixin, DPYCog, metaclass=DPYCogMeta):
 
     .. warning::
 
-        None of your methods should start with ``red_`` or 
+        None of your methods should start with ``red_`` or
         be dunder names which start with red (eg. ``__red_test_thing__``)
         unless to override behavior in a method designed to be overriden,
         as this prefix is reserved for future methods in order to be

redbot/core/commands/converter.py

@@ -75,7 +75,7 @@ def parse_timedelta(
     """
     This converts a user provided string into a timedelta
 
-    The units should be in order from largest to smallest. 
+    The units should be in order from largest to smallest.
     This works with or without whitespace.
 
     Parameters

redbot/core/commands/help.py

@@ -623,7 +623,10 @@ class RedHelpFormatter(HelpFormatterABC):
 
     @staticmethod
     async def help_filter_func(
-        ctx, objects: Iterable[SupportsCanSee], help_settings: HelpSettings, bypass_hidden=False,
+        ctx,
+        objects: Iterable[SupportsCanSee],
+        help_settings: HelpSettings,
+        bypass_hidden=False,
     ) -> AsyncIterator[SupportsCanSee]:
         """
         This does most of actual filtering.

redbot/core/core_commands.py

@@ -443,7 +443,7 @@ class Core(commands.commands._RuleDropper, commands.Cog, CoreLogic):
             await ctx.send(embed=embed)
         else:
             python_version = "{}.{}.{}".format(*sys.version_info[:3])
-            dpy_version = "{}".format(discord.__version__,)
+            dpy_version = "{}".format(discord.__version__)
             red_version = "{}".format(__version__)
 
             about = _(

redbot/core/data_manager.py

@@ -124,7 +124,7 @@ def cog_data_path(cog_instance=None, raw_name: str = None) -> Path:
     Parameters
     ----------
     cog_instance
-        The instance of the cog you wish to get a data path for. 
+        The instance of the cog you wish to get a data path for.
         If calling from a command or method of your cog, this should be ``self``.
     raw_name : str
         The name of the cog to get a data path for.

redbot/core/events.py

@@ -115,7 +115,7 @@ def init_events(bot, cli_flags):
                     "**we highly recommend you to read the update docs at <{docs}> and "
                     "make sure there is nothing else that "
                     "needs to be done during the update.**"
-                ).format(docs="https://docs.discord.red/en/stable/update_red.html",)
+                ).format(docs="https://docs.discord.red/en/stable/update_red.html")
                 if expected_version(current_python, py_version_req):
                     installed_extras = []
                     for extra, reqs in red_pkg._dep_map.items():
@@ -142,8 +142,10 @@ def init_events(bot, cli_flags):
                         if platform.system() == "Windows"
                         else _("Terminal")
                     )
-                    extra_update += '```"{python}" -m pip install -U Red-DiscordBot{package_extras}```'.format(
-                        python=sys.executable, package_extras=package_extras
+                    extra_update += (
+                        '```"{python}" -m pip install -U Red-DiscordBot{package_extras}```'.format(
+                            python=sys.executable, package_extras=package_extras
+                        )
                     )
 
                 else:
@@ -222,7 +224,7 @@ def init_events(bot, cli_flags):
             await ctx.send_help()
         elif isinstance(error, commands.ArgParserFailure):
             msg = _("`{user_input}` is not a valid value for `{command}`").format(
-                user_input=error.user_input, command=error.cmd,
+                user_input=error.user_input, command=error.cmd
             )
             if error.custom_help_msg:
                 msg += f"\n{error.custom_help_msg}"

redbot/core/settings_caches.py

@@ -14,9 +14,9 @@ from .utils import AsyncIter
 class PrefixManager:
     def __init__(self, config: Config, cli_flags: Namespace):
         self._config: Config = config
-        self._global_prefix_overide: Optional[List[str]] = sorted(
-            cli_flags.prefix, reverse=True
-        ) or None
+        self._global_prefix_overide: Optional[List[str]] = (
+            sorted(cli_flags.prefix, reverse=True) or None
+        )
         self._cached: Dict[Optional[int], List[str]] = {}
 
     async def get_prefixes(self, guild: Optional[discord.Guild] = None) -> List[str]:

redbot/core/utils/__init__.py

@@ -154,7 +154,7 @@ async def _sem_wrapper(sem, task):
 
 
 def bounded_gather_iter(
-    *coros_or_futures, limit: int = 4, semaphore: Optional[Semaphore] = None,
+    *coros_or_futures, limit: int = 4, semaphore: Optional[Semaphore] = None
 ) -> Iterator[Awaitable[Any]]:
     """
     An iterator that returns tasks as they are ready, but limits the

redbot/core/utils/menus.py

@@ -169,7 +169,7 @@ async def close_menu(
 
 
 def start_adding_reactions(
-    message: discord.Message, emojis: Iterable[_ReactableEmoji],
+    message: discord.Message, emojis: Iterable[_ReactableEmoji]
 ) -> asyncio.Task:
     """Start adding reactions to a message.