issue_comments: 395067197
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| html_url | issue_url | id | node_id | user | created_at | updated_at | author_association | body | reactions | performed_via_github_app | issue |
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| https://github.com/pydata/xarray/issues/2191#issuecomment-395067197 | https://api.github.com/repos/pydata/xarray/issues/2191 | 395067197 | MDEyOklzc3VlQ29tbWVudDM5NTA2NzE5Nw== | 31460695 | 2018-06-06T13:25:11Z | 2018-06-06T13:25:11Z | NONE | Yes, when open_mfdataset decides to convert to CFTime this is much faster. When time is in datetime64, I get: ``` AttributeError Traceback (most recent call last) <ipython-input-72-a96fa0263d3e> in <module>() 9 dss = xr.open_mfdataset(files,decode_times=True,autoclose=True) 10 #month_start = [DatetimeNoLeap(date.dt.year, date.dt.month, 1) for date in dss.time] ---> 11 month_start = [DatetimeNoLeap(date.year, date.month, 1) for date in dss.time.values] 12 #month_start = [DatetimeNoLeap(yr, mon, 1) for yr,mon in zip(dss.time.dt.year,dss.time.dt.month)] 13 #break <ipython-input-72-a96fa0263d3e> in <listcomp>(.0) 9 dss = xr.open_mfdataset(files,decode_times=True,autoclose=True) 10 #month_start = [DatetimeNoLeap(date.dt.year, date.dt.month, 1) for date in dss.time] ---> 11 month_start = [DatetimeNoLeap(date.year, date.month, 1) for date in dss.time.values] 12 #month_start = [DatetimeNoLeap(yr, mon, 1) for yr,mon in zip(dss.time.dt.year,dss.time.dt.month)] 13 #break AttributeError: 'numpy.datetime64' object has no attribute 'year' ``` You can see I made a feeble attempt to fix it to work for all the CMIP5 calendars, but is just as slow. Any suggestions? |
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