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/5551#issuecomment-870748510,https://api.github.com/repos/pydata/xarray/issues/5551,870748510,MDEyOklzc3VlQ29tbWVudDg3MDc0ODUxMA==,20629530,2021-06-29T16:35:02Z,2021-06-29T16:39:59Z,CONTRIBUTOR,"EDIT: I hit enter a bit too soon... I think I found the very source of the problem, maybe this could be fixed in cftime: ```python import pickle ds.time # same No-Leap coordinate as in the MWE above # Items are instances of `cftime.DatetimeNoLeap` pickle.loads(pickle.dumps(ds.time)) # Items are instances of `cftime.datetime`, calendar information is now only an attribute, `get_clean_interp_index` will fail ``` However, as xarray has the possiblity to contain cftime coordinates where the calendar is an attribute, I guess `get_clean_interp_index` needs to be fixed?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,932898075