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Clarify error when plot() args have bad shapes. #5607

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Merged
tacaswell merged 1 commit into from
Dec 5, 2015
Merged

Clarify error when plot() args have bad shapes. #5607

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6 changes: 4 additions & 2 deletions lib/matplotlib/axes/_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -220,9 +220,11 @@ def _xy_from_xy(self, x, y):
x = _check_1d(x)
y = _check_1d(y)
if x.shape[0] != y.shape[0]:
raise ValueError("x and y must have same first dimension")
raise ValueError("x and y must have same first dimension, but "
"have shapes {} and {}".format(x.shape, y.shape))
if x.ndim > 2 or y.ndim > 2:
raise ValueError("x and y can be no greater than 2-D")
raise ValueError("x and y can be no greater than 2-D, but have "
"shapes {} and {}".format(x.shape, y.shape))

if x.ndim == 1:
x = x[:, np.newaxis]
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