DepreciationWarnings triggered by openpyxl itself can't be suppressed
*Created originally on Bitbucket by [ssbbb (SB)](https://bitbucket.org/%7B6b54a72f-45aa-4b98-8e5b-9496ed9aa0bd%7D/)*
`openpyxl\compat\__init__.py:depreciated()` contains this at line 48:
`warnings.simplefilter('always', DeprecationWarning)`
This seems like a bad idea as it means there is no way to suppress DeprecationWarnings. The problem is that openpyxl _itself_ raises DepreciationWarnings, which the user can't avoid:
`...\openpyxl\worksheet\read_only.py:189: DeprecationWarning: Call to deprecated function get_squared_range (Use ws.iter_rows()).`
then this means your stdout gets trashed without being able to do anything about it :-(. Overriding any filter added by client code doesn't seem like very good practice?
issue