Fix lint

mattbillenstein · mattbillenstein · commit 891709345c98 · 2022-07-25T02:26:04.000Z
diff --git a/slack_sdk/socket_mode/builtin/internals.py b/slack_sdk/socket_mode/builtin/internals.py
@@ -1,4 +1,3 @@
-import errno
 import hashlib
 import itertools
 import os
@@ -25,7 +24,7 @@ def _parse_connect_response(sock: Socket) -> Tuple[Optional[int], str]:
         while True:
             c = sock.recv(1)
             if not c:
-                raise ConnectionError('Connection is closed')
+                raise ConnectionError("Connection is closed")
             line.append(c)
             if c == b"\n":
                 break
@@ -118,7 +117,7 @@ def _read_http_response_line(sock: ssl.SSLSocket) -> str:
     while True:
         b: bytes = sock.recv(1)
         if not b:
-            raise ConnectionError('Connection is closed')
+            raise ConnectionError("Connection is closed")
         c: str = b.decode("utf-8")
         if c == "\r":
             break
@@ -206,7 +205,7 @@ def receive(specific_buffer_size: Optional[int] = None):
         with sock_receive_lock:
             received_bytes = sock.recv(size)
             if not received_bytes:
-                raise ConnectionError('Connection is closed')
+                raise ConnectionError("Connection is closed")
             if all_message_trace_enabled:
                 logger.debug(f"Received bytes: {received_bytes}")
             return received_bytes
