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Really fix ArtistInspector.get_aliases #13432

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2 changes: 1 addition & 1 deletion lib/matplotlib/artist.py
Original file line number Diff line number Diff line change
Expand Up @@ -1209,7 +1209,7 @@ def get_aliases(self):
continue
propname = re.search("`({}.*)`".format(name[:4]), # get_.*/set_.*
inspect.getdoc(func)).group(1)
aliases.setdefault(propname, set()).add(name[4:])
aliases.setdefault(propname[4:], set()).add(name[4:])
return aliases

_get_valid_values_regex = re.compile(
Expand Down
7 changes: 7 additions & 0 deletions lib/matplotlib/tests/test_artist.py
Original file line number Diff line number Diff line change
Expand Up @@ -277,3 +277,10 @@ def set_f(self, arg):
""" % accept_clause
valid_values = martist.ArtistInspector(TestArtist).get_valid_values('f')
assert valid_values == expected


def test_artist_inspector_get_aliases():
# test the correct format and type of get_aliases method
ai = martist.ArtistInspector(mlines.Line2D)
aliases = ai.get_aliases()
assert aliases["linewidth"] == {"lw"}