[Mod] Promise:增加对traceback的支持
[Mod] Promise:增加对traceback的支持

bigdig/vnpy,bigdig/vnpy,bigdig/vnpy,vnpy/vnpy,bigdig/vnpy,msincenselee/vnpy,msincenselee/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,vnpy/vnpy,msincenselee/vnpy