Update python.json

Author: Danny McCormick

.github/python.json

@@ -4,7 +4,7 @@
             "owner": "python",
             "pattern": [
                 {
-                    "regexp": "^\\s*File\\s\"(.*)\",\\sline\\s(\\d+),\\sin\\s(.*)$",
+                    "regexp": "^\\s*File\\s\\\"(.*)\\\",\\sline\\s(\\d+),\\sin\\s(.*)$",
                     "file": 1,
                     "line": 2
                 },