Edited this issue about 14 times, here is the minimal works/doesn't:

Works:

d= {4:1,6:2}plt.bar(d.keys(),d.values())

doesn't work

d= {4:1,6:2}plt.plot(d.keys(),d.values())

doesn't work as of '3.2.1.post2558.dev0+geeeafe9c2' & support for this was added in#6787