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/7298#issuecomment-1377451550,https://api.github.com/repos/pydata/xarray/issues/7298,1377451550,IC_kwDOAMm_X85SGj4e,14808389,2023-01-10T15:33:20Z,2023-01-10T15:33:20Z,MEMBER,"you can reproduce this error even without going through the html repr: `repr(time_objs[:0])` and `time_objs[:0].calendar` raise the same error (but with a much shorter traceback).

To fix that, I wonder if we should either return `None` (since we can't infer the calendar from an empty array) or somehow cache the calendar (and all other dynamically inferred properties, if there are others) on creation / modification of the `CFTimeIndex` object.

cc @spencerkclark","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1455395909