[TD-10642]<enhance>: [schemaless] modified python connector to

accomandate API change

src/connector/python/taos/cinterface.py

@@ -816,17 +816,19 @@ except AttributeError:
 
 
 
-def taos_schemaless_insert(connection, lines, protocol, precision):
+def taos_schemaless_insert(connection, lines, protocol, precision, msg_size=512):
     # type: (c_void_p, list[str] | tuple(str)) -> None
     num_of_lines = len(lines)
     lines = (c_char_p(line.encode("utf-8")) for line in lines)
     lines_type = ctypes.c_char_p * num_of_lines
     p_lines = lines_type(*lines)
-    if precision != None:
+    if precision is not None:
         precision = c_char_p(precision.encode("utf-8"))
-    errno = _libtaos.taos_schemaless_insert(connection, p_lines, num_of_lines, protocol, precision)
+    a_lines = c_int()
+    msg = create_string_buffer(msg_size)
+    errno = _libtaos.taos_schemaless_insert(connection, p_lines, num_of_lines, protocol, precision, byref(a_lines), msg, msg_size)
     if errno != 0:
-        raise SchemalessError("schemaless insert error", errno)
+        raise SchemalessError("schemaless insert error({}), affected_rows({})".format(msg.value.decode("utf-8"), a_lines.value), errno)
 
 class CTaosInterface(object):
     def __init__(self, config=None):