Specify origin='upper' in call to imshow within specgram to override rcparams setting for origin without changing rcparams itself. Delete origin from kwargs so there are not two occurrences of the origin parameter in the call to imshow (this also means the origin kwarg cannot be changed by the caller).

…/matplotlib into fix-for-issue-17878

This ensures the origin kwarg is not silently ignored if passed to pyplot.specgram.

The function pyplot.specgram should raise a TypeError if origin is passed as a keyword argument.

Co-authored-by: Tim Hoffmann <[email protected]>

This note referenced the call to imshow inside of specgram, which might confuse users who do not know the implementation of specgram.

Passing origin as a keyword argument should raise a type error, so test_specgram_origin_kwarg should raise an exception. Therefore, raises is a more precise check than xfail.

Co-authored-by: Tim Hoffmann <[email protected]>

This note referenced the call to imshow inside of specgram, which might confuse users who do not know the implementation of specgram.

Passing origin as a keyword argument should raise a type error, so test_specgram_origin_kwarg should raise an exception. Therefore, raises is a more precise check than xfail.