issue_comments: 807145690

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https://github.com/pydata/xarray/issues/5073#issuecomment-807145690 https://api.github.com/repos/pydata/xarray/issues/5073 807145690 MDEyOklzc3VlQ29tbWVudDgwNzE0NTY5MA== 14808389 2021-03-25T17:29:57Z 2021-03-25T17:30:57Z MEMBER

as far as I understand the docs of DeprecationWarning and FutureWarning, the main difference is the intended target audience in a traditional library vs. application setting (where libraries are always used to write applications): PendingDeprecationWarning and DeprecationWarning are used to signal deprecations in the library, while FutureWarning are intended for users of the application. Interestingly, PEP565 mentions that FutureWarning can also be used for changed semantics of valid code.

If we follow that, xarray should not issue FutureWarning (other than to report changing semantics) because it is a library and both interactive and scripted use would be similar to writing a application.

 
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