issue_comments: 143347373

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https://github.com/pydata/xarray/issues/463#issuecomment-143347373 https://api.github.com/repos/pydata/xarray/issues/463 143347373 MDEyOklzc3VlQ29tbWVudDE0MzM0NzM3Mw== 1217238 2015-09-25T20:35:38Z 2015-09-25T20:35:38Z MEMBER

OK, so the problem is that self.array on NetCDF4ArrayWrapper is retaining a reference to netCDF4.Variable object on the closed dataset. It's not enough to merely ensure that a netCDF4 dataset is opened -- you also need to ensure that no references to variables on the old dataset are still around. So get_variables/open_store_variable may need a refactor to deal with this.

 
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