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Backport PR #16006: Ignore pos in StrCategoryFormatter.__call__ to di… #16542

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Merged
merged 1 commit into from
Feb 17, 2020
Merged

Backport PR #16006: Ignore pos in StrCategoryFormatter.__call__ to di… #16542

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7 changes: 6 additions & 1 deletion lib/matplotlib/category.py
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Original file line number Diff line number Diff line change
Expand Up @@ -138,7 +138,12 @@ def __init__(self, units_mapping):
self._units = units_mapping

def __call__(self, x, pos=None):
return '' if pos is None else self.format_ticks([x])[0]
"""
Return the category label string for tick val *x*.

The position *pos* is ignored.
"""
return self.format_ticks([x])[0]

def format_ticks(self, values):
r_mapping = {v: self._text(k) for k, v in self._units.items()}
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8 changes: 4 additions & 4 deletions lib/matplotlib/tests/test_category.py
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Expand Up @@ -156,16 +156,16 @@ def test_StrCategoryFormatter(self, ax, ydata):
unit = cat.UnitData(ydata)
labels = cat.StrCategoryFormatter(unit._mapping)
for i, d in enumerate(ydata):
assert labels(i, i) == _to_str(d)
assert labels(i, i) == d
assert labels(i, None) == d

@pytest.mark.parametrize("ydata", cases, ids=ids)
@pytest.mark.parametrize("plotter", PLOT_LIST, ids=PLOT_IDS)
def test_StrCategoryFormatterPlot(self, ax, ydata, plotter):
plotter(ax, range(len(ydata)), ydata)
for i, d in enumerate(ydata):
assert ax.yaxis.major.formatter(i, i) == _to_str(d)
assert ax.yaxis.major.formatter(i+1, i+1) == ""
assert ax.yaxis.major.formatter(0, None) == ""
assert ax.yaxis.major.formatter(i) == d
assert ax.yaxis.major.formatter(i+1) == ""


def axis_test(axis, labels):
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