python: Fix PAR001 Redundant parentheses.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

tools/custom_check.py

@@ -36,17 +36,6 @@ python_rules = RuleList(
             "good_lines": ["def foo (self):"],
             "bad_lines": ["def foo(self: Any):"],
         },
-        # This next check could have false positives, but it seems pretty
-        # rare; if we find any, they can be added to the exclude list for
-        # this rule.
-        {
-            "pattern": r" % [a-zA-Z0-9_.]*\)?$",
-            "description": "Used % comprehension without a tuple",
-        },
-        {
-            "pattern": r".*%s.* % \([a-zA-Z0-9_.]*\)$",
-            "description": "Used % comprehension without a tuple",
-        },
         {
             "pattern": r"__future__",
             "include_only": {"zulip_bots/zulip_bots/bots/"},

tools/provision

@@ -43,7 +43,7 @@ the Python version this command is executed with."""
     py_version = tuple(int(num) for num in py_version_list[0:2])
     venv_name = f"zulip-api-py{py_version[0]}-venv"
 
-    if py_version <= (3, 1) and (not options.force):
+    if py_version <= (3, 1) and not options.force:
         print(
             red
             + "Provision failed: Cannot create venv with outdated Python version ({}).\n"

zulip/integrations/bridge_with_irc/irc_mirror_backend.py

@@ -75,7 +75,7 @@ class IRCBot(irc.bot.SingleServerIRCBot):
                 in_the_specified_stream = msg["display_recipient"] == self.stream
                 at_the_specified_subject = msg["subject"].casefold() == self.topic.casefold()
                 if in_the_specified_stream and at_the_specified_subject:
-                    msg["content"] = ("@**{}**: ".format(msg["sender_full_name"])) + msg["content"]
+                    msg["content"] = "@**{}**: ".format(msg["sender_full_name"]) + msg["content"]
                     send = lambda x: self.c.privmsg(self.channel, x)
                 else:
                     return

zulip/integrations/google/google-calendar

@@ -82,7 +82,7 @@ parser.add_argument(
 
 options = parser.parse_args()
 
-if not (options.zulip_email):
+if not options.zulip_email:
     parser.error("You must specify --user")
 
 zulip_client = zulip.init_from_options(options)

zulip/integrations/rss/rss-bot

@@ -227,7 +227,7 @@ for feed_url in feed_urls:
         )
         if (
             entry_time is not None
-            and (time.time() - calendar.timegm(entry_time)) > OLDNESS_THRESHOLD * 60 * 60 * 24
+            and time.time() - calendar.timegm(entry_time) > OLDNESS_THRESHOLD * 60 * 60 * 24
         ):
             # As a safeguard against misbehaving feeds, don't try to process
             # entries older than some threshold.
@@ -235,7 +235,7 @@ for feed_url in feed_urls:
         if entry_hash in old_feed_hashes:
             # We've already seen this. No need to process any older entries.
             break
-        if (not old_feed_hashes) and (len(new_hashes) >= 3):
+        if not old_feed_hashes and len(new_hashes) >= 3:
             # On a first run, pick up the 3 most recent entries. An RSS feed has
             # entries in reverse chronological order.
             break

zulip/integrations/trello/zulip_trello.py

@@ -122,7 +122,7 @@ at <https://zulip.com/integrations/doc/trello>.
     parser.add_argument(
         "--trello-board-id",
         required=True,
-        help=("The Trello board short ID. Can usually be found in the URL of the Trello board."),
+        help="The Trello board short ID. Can usually be found in the URL of the Trello board.",
     )
     parser.add_argument(
         "--trello-api-key",

zulip/integrations/zephyr/zephyr_mirror_backend.py

@@ -474,7 +474,7 @@ def process_notice(
     # Drop messages not to the listed subscriptions
     if is_personal and not options.forward_personals:
         return
-    if (zephyr_class.lower() not in current_zephyr_subs) and not is_personal:
+    if zephyr_class.lower() not in current_zephyr_subs and not is_personal:
         logger.debug("Skipping ... %s/%s/%s", zephyr_class, zephyr_instance, is_personal)
         return
     if notice.z_default_format.startswith(b"Zephyr error: See") or notice.z_default_format.endswith(
@@ -916,7 +916,7 @@ def maybe_forward_to_zephyr(message: Dict[str, Any], zulip_client: zulip.Client)
     # The key string can be used to direct any type of text.
     if message["sender_email"] == zulip_account_email:
         if not (
-            (message["type"] == "stream")
+            message["type"] == "stream"
             or (
                 message["type"] == "private"
                 and False

zulip/zulip/cli.py

@@ -60,7 +60,7 @@ def send_message(recipients: List[str], stream: str, subject: str, message: str)
     if len(recipients) != 0 and has_stream:
         click.echo("You cannot specify both a username and a stream/subject.")
         raise SystemExit(1)
-    if len(recipients) == 0 and (has_stream != has_subject):
+    if len(recipients) == 0 and has_stream != has_subject:
         click.echo("Stream messages must have a subject")
         raise SystemExit(1)
     if len(recipients) == 0 and not has_stream:

zulip/zulip/send.py

@@ -77,7 +77,7 @@ def main() -> int:
     # Sanity check user data
     if len(options.recipients) != 0 and (options.stream or options.subject):
         parser.error("You cannot specify both a username and a stream/subject.")
-    if len(options.recipients) == 0 and (bool(options.stream) != bool(options.subject)):
+    if len(options.recipients) == 0 and bool(options.stream) != bool(options.subject):
         parser.error("Stream messages must have a subject")
     if len(options.recipients) == 0 and not (options.stream and options.subject):
         parser.error("You must specify a stream/subject or at least one recipient.")

zulip_bots/zulip_bots/bots/chessbot/chessbot.py

@@ -401,7 +401,7 @@ def make_loss_response(board: chess.Board, reason: str) -> str:
 
     Returns: The loss response string.
     """
-    return ("*{}* {}. **{}** wins!\n\n{}").format(
+    return "*{}* {}. **{}** wins!\n\n{}".format(
         "White" if board.turn else "Black",
         reason,
         "Black" if board.turn else "White",
@@ -418,7 +418,7 @@ def make_not_legal_response(board: chess.Board, move_san: str) -> str:
 
     Returns: The not-legal-move response string.
     """
-    return ("Sorry, the move *{}* isn't legal.\n\n{}\n\n\n{}").format(
+    return "Sorry, the move *{}* isn't legal.\n\n{}\n\n\n{}".format(
         move_san, make_str(board, board.turn), make_footer()
     )
 

zulip_bots/zulip_bots/bots/converter/converter.py

@@ -62,10 +62,10 @@ def get_bot_converter_response(message: Dict[str, str], bot_handler: BotHandler)
     results = []
 
     for convert_index in convert_indexes:
-        if (convert_index + 1) < len(words) and words[convert_index + 1] == "help":
+        if convert_index + 1 < len(words) and words[convert_index + 1] == "help":
             results.append(utils.HELP_MESSAGE)
             continue
-        if (convert_index + 3) < len(words):
+        if convert_index + 3 < len(words):
             number = words[convert_index + 1]
             unit_from = utils.ALIASES.get(words[convert_index + 2], words[convert_index + 2])
             unit_to = utils.ALIASES.get(words[convert_index + 3], words[convert_index + 3])
@@ -132,7 +132,7 @@ def get_bot_converter_response(message: Dict[str, str], bot_handler: BotHandler)
 
     new_content = ""
     for idx, result in enumerate(results, 1):
-        new_content += ((str(idx) + ". conversion: ") if len(results) > 1 else "") + result + "\n"
+        new_content += (str(idx) + ". conversion: " if len(results) > 1 else "") + result + "\n"
 
     return new_content
 

zulip_bots/zulip_bots/bots/game_of_fifteen/game_of_fifteen.py

@@ -62,16 +62,16 @@ class GameOfFifteenModel:
             if tile not in coordinates:
                 raise BadMoveError("You can only move tiles which exist in the board.")
             i, j = coordinates[tile]
-            if (j - 1) > -1 and board[i][j - 1] == 0:
+            if j - 1 > -1 and board[i][j - 1] == 0:
                 board[i][j - 1] = tile
                 board[i][j] = 0
-            elif (i - 1) > -1 and board[i - 1][j] == 0:
+            elif i - 1 > -1 and board[i - 1][j] == 0:
                 board[i - 1][j] = tile
                 board[i][j] = 0
-            elif (j + 1) < 3 and board[i][j + 1] == 0:
+            elif j + 1 < 3 and board[i][j + 1] == 0:
                 board[i][j + 1] = tile
                 board[i][j] = 0
-            elif (i + 1) < 3 and board[i + 1][j] == 0:
+            elif i + 1 < 3 and board[i + 1][j] == 0:
                 board[i + 1][j] = tile
                 board[i][j] = 0
             else:

zulip_bots/zulip_bots/bots/incident/incident.py

@@ -85,7 +85,7 @@ def generate_ticket_id(storage: Any) -> str:
     except KeyError:
         incident_num = 0
     incident_num += 1
-    incident_num = incident_num % (1000)
+    incident_num = incident_num % 1000
     storage.put("ticket_id", incident_num)
     ticket_id = "TICKET%04d" % (incident_num,)
     return ticket_id

zulip_bots/zulip_bots/bots/link_shortener/link_shortener.py

@@ -64,7 +64,7 @@ class LinkShortenerHandler:
 
         shortened_links = [self.shorten_link(link) for link in link_matches]
         link_pairs = [
-            (link_match + ": " + shortened_link)
+            link_match + ": " + shortened_link
             for link_match, shortened_link in zip(link_matches, shortened_links)
             if shortened_link != ""
         ]

zulip_bots/zulip_bots/bots/merels/libraries/mechanics.py

@@ -152,7 +152,7 @@ def is_legal_move(v1, h1, v2, h2, turn, phase, grid):
     return (
         is_in_grid(v2, h2)
         and is_empty(v2, h2, grid)
-        and (not is_jump(v1, h1, v2, h2))
+        and not is_jump(v1, h1, v2, h2)
         and is_own_piece(v1, h1, turn, grid)
     )
 

zulip_bots/zulip_bots/bots/merels/merels.py

@@ -34,8 +34,7 @@ class MerelsModel:
         data = game_data.GameData(merels.get_game_data(self.topic))
 
         return data.get_phase() > 1 and (
-            (mechanics.get_piece("X", data.grid()) <= 2)
-            or (mechanics.get_piece("O", data.grid()) <= 2)
+            mechanics.get_piece("X", data.grid()) <= 2 or mechanics.get_piece("O", data.grid()) <= 2
         )
 
     def make_move(self, move: str, player_number: int, computer_move: bool = False) -> Any:

zulip_bots/zulip_bots/bots/tictactoe/tictactoe.py

@@ -194,8 +194,8 @@ class TicTacToeModel:
         move_coords = move_coords_str.split(",")
         # Subtraction must be done to convert to the right indices,
         # since computers start numbering at 0.
-        row = (int(move_coords[1])) - 1
-        column = (int(move_coords[0])) - 1
+        row = int(move_coords[1]) - 1
+        column = int(move_coords[0]) - 1
         if board[row][column] != 0:
             raise BadMoveError("Make sure your space hasn't already been filled.")
         board[row][column] = player_number + 1

zulip_bots/zulip_bots/bots/trello/test_trello.py

@@ -83,7 +83,7 @@ class TestTrelloBot(BotTestCase, DefaultTests):
             with self.mock_http_conversation("get_lists"):
                 self.verify_reply(
                     "get-all-lists TEST",
-                    ("**Lists:**\n1. TEST_A\n  * TEST_1\n2. TEST_B\n  * TEST_2"),
+                    "**Lists:**\n1. TEST_A\n  * TEST_1\n2. TEST_B\n  * TEST_2",
                 )
 
     def test_command_exceptions(self) -> None:

zulip_bots/zulip_bots/bots/trivia_quiz/trivia_quiz.py

@@ -134,7 +134,7 @@ def generate_quiz_id(storage: Any) -> str:
     except (KeyError, TypeError):
         quiz_num = 0
     quiz_num += 1
-    quiz_num = quiz_num % (1000)
+    quiz_num = quiz_num % 1000
     storage.put("quiz_id", quiz_num)
     quiz_id = "Q%03d" % (quiz_num,)
     return quiz_id

zulip_bots/zulip_bots/bots/weather/weather.py

@@ -40,7 +40,7 @@ class WeatherHandler:
             @**Weather Bot** Portland, Me
             """.strip()
 
-        if (message["content"] == "help") or (message["content"] == ""):
+        if message["content"] == "help" or message["content"] == "":
             response = help_content
         else:
             api_params = dict(q=message["content"], APPID=self.api_key)

zulip_bots/zulip_bots/bots/yoda/yoda.py

@@ -92,7 +92,7 @@ class YodaSpeakHandler:
     def handle_input(self, message: Dict[str, str], bot_handler: BotHandler) -> None:
         original_content = message["content"]
 
-        if self.is_help(original_content) or (original_content == ""):
+        if self.is_help(original_content) or original_content == "":
             bot_handler.send_reply(message, HELP_MESSAGE)
 
         else: