fix C code

methane · methane · commit 9f5ecdc36db8 · 2020-12-08T18:00:27.000+09:00
diff --git a/MySQLdb/_mysql.c b/MySQLdb/_mysql.c
@@ -1246,11 +1246,11 @@ _mysql_row_to_dict(
             goto error;
         }
         int err = PyDict_Contains(r, pyname);
-        if (res < 0) {
+        if (err < 0) { // error
             Py_DECREF(v);
             goto error;
         }
-        if (res) {
+        if (err) { // duplicate
             Py_DECREF(pyname);
             pyname = PyUnicode_FromFormat("%s.%s", fields[i].table, fields[i].name);
             if (pyname == NULL) {

Original file line number	Diff line number	Diff line change
`@@ -1246,11 +1246,11 @@ _mysql_row_to_dict(`
`1246`	`1246`	`goto error;`
`1247`	`1247`	`}`
`1248`	`1248`	`int err = PyDict_Contains(r, pyname);`
`1249`		`- if (res < 0) {`
	`1249`	`+ if (err < 0) { // error`
`1250`	`1250`	`Py_DECREF(v);`
`1251`	`1251`	`goto error;`
`1252`	`1252`	`}`
`1253`		`- if (res) {`
	`1253`	`+ if (err) { // duplicate`
`1254`	`1254`	`Py_DECREF(pyname);`
`1255`	`1255`	`pyname = PyUnicode_FromFormat("%s.%s", fields[i].table, fields[i].name);`
`1256`	`1256`	`if (pyname == NULL) {`