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FIX: fail early for non-finite figure sizes #8647

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May 23, 2017
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FIX: fail early for non-finite figure sizes #8647

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FIX: fail early for non-finite figure sizes 
Closes #8640
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@tacaswell
tacaswell committed May 22, 2017
commit a4999acbbf6ebd6fa211f70becd49887dce663ab
4 changes: 2 additions & 2 deletions lib/matplotlib/colors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -79,8 +79,8 @@ def __setitem__(self, key, value):
super(_ColorMapping, self).__setitem__(key, value)
self.cache.clear()

def __delitem__(self, key, value):
super(_ColorMapping, self).__delitem__(key, value)
def __delitem__(self, key):
super(_ColorMapping, self).__delitem__(key)
self.cache.clear()


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11 changes: 10 additions & 1 deletion lib/matplotlib/figure.py
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Expand Up @@ -324,7 +324,11 @@ def __init__(self,
if frameon is None:
frameon = rcParams['figure.frameon']

if not np.isfinite(figsize).all():
raise ValueError('figure size must be finite not '
'{}'.format(figsize))
self.bbox_inches = Bbox.from_bounds(0, 0, *figsize)

self.dpi_scale_trans = Affine2D().scale(dpi, dpi)
# do not use property as it will trigger
self._dpi = dpi
Expand Down Expand Up @@ -710,7 +714,9 @@ def set_size_inches(self, w, h=None, forward=True):
# argument, so unpack them
if h is None:
w, h = w

if not all(np.isfinite(_) for _ in (w, h)):
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np.isfinite([w, h]).all()

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not convinced going through numpy is better in this case.

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sounds fair

raise ValueError('figure size must be finite not '
'({}, {})'.format(w, h))
dpival = self.dpi
self.bbox_inches.p1 = w, h

Expand Down Expand Up @@ -920,6 +926,9 @@ def add_axes(self, *args, **kwargs):
raise ValueError(msg)
else:
rect = args[0]
if not np.isfinite(rect).all():
raise ValueError('all entries in rect must be finite '
'not {}'.format(rect))
projection_class, kwargs, key = process_projection_requirements(
self, *args, **kwargs)

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12 changes: 12 additions & 0 deletions lib/matplotlib/tests/test_figure.py
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Expand Up @@ -286,3 +286,15 @@ def test_change_dpi():
fig.canvas.draw()
assert fig.canvas.renderer.height == 200
assert fig.canvas.renderer.width == 200


def test_invalid_figure_size():
with pytest.raises(ValueError):
plt.figure(figsize=(1, np.nan))

fig = plt.figure()
with pytest.raises(ValueError):
fig.set_size_inches(1, np.nan)

with pytest.raises(ValueError):
fig.add_axes((.1, .1, .5, np.nan))