html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/1661#issuecomment-340220857,https://api.github.com/repos/pydata/xarray/issues/1661,340220857,MDEyOklzc3VlQ29tbWVudDM0MDIyMDg1Nw==,1217238,2017-10-28T21:24:52Z,2017-10-28T21:24:52Z,MEMBER,"Thanks @gerritholl and @TomAugspurger for your help figuring this out.

See #1669 for a fix.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339525582,https://api.github.com/repos/pydata/xarray/issues/1661,339525582,MDEyOklzc3VlQ29tbWVudDMzOTUyNTU4Mg==,1312546,2017-10-26T01:49:12Z,2017-10-26T01:49:12Z,MEMBER,"Yep, that was the change.

The fix is to explicitly register the converters before plotting:

```python
from pandas.tseries import converter
converter.register()
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339515375,https://api.github.com/repos/pydata/xarray/issues/1661,339515375,MDEyOklzc3VlQ29tbWVudDMzOTUxNTM3NQ==,500246,2017-10-26T00:40:20Z,2017-10-26T00:40:20Z,CONTRIBUTOR,@TomAugspurger  Is it [this one](https://github.com/pandas-dev/pandas/commit/2310faa109bdfd9ff3ef4fc19a163d790d60c645#diff-c9442f0523e6449da9fa54834fb120fcL9)?,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339510522,https://api.github.com/repos/pydata/xarray/issues/1661,339510522,MDEyOklzc3VlQ29tbWVudDMzOTUxMDUyMg==,1312546,2017-10-26T00:05:57Z,2017-10-26T00:05:57Z,MEMBER,Pandas used to register a matplotlib converter for datetimes on import. I’ll take a closer look in a bit. ,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339467595,https://api.github.com/repos/pydata/xarray/issues/1661,339467595,MDEyOklzc3VlQ29tbWVudDMzOTQ2NzU5NQ==,500246,2017-10-25T20:52:30Z,2017-10-25T20:52:30Z,CONTRIBUTOR,This happens after: https://github.com/pandas-dev/pandas/commit/2310faa109bdfd9ff3ef4fc19a163d790d60c645,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339451381,https://api.github.com/repos/pydata/xarray/issues/1661,339451381,MDEyOklzc3VlQ29tbWVudDMzOTQ1MTM4MQ==,500246,2017-10-25T19:54:34Z,2017-10-25T19:54:34Z,CONTRIBUTOR,The problem is triggered by a recent change in pandas.  I'm currently bisecting pandas to see where it is but it's a little slow due to the compilation at every step.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339430955,https://api.github.com/repos/pydata/xarray/issues/1661,339430955,MDEyOklzc3VlQ29tbWVudDMzOTQzMDk1NQ==,500246,2017-10-25T18:44:37Z,2017-10-25T18:44:37Z,CONTRIBUTOR,"Actually, it isn't in matplotlib really.  It's xarrays responsibility after all.  To plot with pcolormesh, one needs to convert the date axis using datenum, see https://stackoverflow.com/a/27918586/974555 .  When plotting with xarray, that is out of control of the user, so there must be some step within xarray to prepare this.  What I still don't know is why my code (not this MWE, but my actual code) worked several months ago but not now.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339416758,https://api.github.com/repos/pydata/xarray/issues/1661,339416758,MDEyOklzc3VlQ29tbWVudDMzOTQxNjc1OA==,500246,2017-10-25T17:58:34Z,2017-10-25T17:58:34Z,CONTRIBUTOR,"Never mind, this is in matplotlib.  See https://github.com/matplotlib/matplotlib/issues/9577.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752
https://github.com/pydata/xarray/issues/1661#issuecomment-339413389,https://api.github.com/repos/pydata/xarray/issues/1661,339413389,MDEyOklzc3VlQ29tbWVudDMzOTQxMzM4OQ==,500246,2017-10-25T17:47:19Z,2017-10-25T17:47:19Z,CONTRIBUTOR,"I'm quite sure it worked in the past, but trying old versions of `xarray` yields the same error, so either my memory is wrong, or this started failing due to changes in dependencies.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,268487752