[docs] [issue18820] json.dump() ignores its 'default' option when serializing dictionary keys

Ezio Melotti added the comment: Are there already tests that cover the changes in your patch? If not, could you add them? ---------- nosy: +ezio.melotti, pitrou, rhettinger stage: -> test needed _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue18820> _______________________________________