fix

methane · methane · commit 971c995a7eb6 · 2021-01-02T18:10:41.000+09:00
diff --git a/pymysql/connections.py b/pymysql/connections.py
@@ -3,7 +3,6 @@
 # Error codes:
 # https://dev.mysql.com/doc/refman/5.5/en/error-handling.html
 import errno
-import io
 import os
 import socket
 import struct
diff --git a/pymysql/converters.py b/pymysql/converters.py
@@ -288,7 +288,7 @@ def through(x):
     int: escape_int,
     float: escape_float,
     str: escape_str,
-    bytes: escape_bytes
+    bytes: escape_bytes,
     tuple: escape_sequence,
     list: escape_sequence,
     set: escape_sequence,
