lol

venv/Lib/site-packages/sqlalchemy/dialects/mysql/pymysql.py

@@ -74,6 +74,40 @@ class MySQLDialect_pymysql(MySQLDialect_mysqldb):
     def import_dbapi(cls):
         return __import__("pymysql")
 
+    @langhelpers.memoized_property
+    def _send_false_to_ping(self):
+        """determine if pymysql has deprecated, changed the default of,
+        or removed the 'reconnect' argument of connection.ping().
+
+        See #10492 and
+        https://github.com/PyMySQL/mysqlclient/discussions/651#discussioncomment-7308971
+        for background.
+
+        """  # noqa: E501
+
+        try:
+            Connection = __import__("pymysql.connections").Connection
+        except (ImportError, AttributeError):
+            return True
+        else:
+            insp = langhelpers.get_callable_argspec(Connection.ping)
+            try:
+                reconnect_arg = insp.args[1]
+            except IndexError:
+                return False
+            else:
+                return reconnect_arg == "reconnect" and (
+                    not insp.defaults or insp.defaults[0] is not False
+                )
+
+    def do_ping(self, dbapi_connection):
+        if self._send_false_to_ping:
+            dbapi_connection.ping(False)
+        else:
+            dbapi_connection.ping()
+
+        return True
+
     def create_connect_args(self, url, _translate_args=None):
         if _translate_args is None:
             _translate_args = dict(username="user")