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Backport PR #9242 on branch v2.1.x #9337

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Merged
merged 1 commit into from
Oct 10, 2017
Merged

Backport PR #9242 on branch v2.1.x #9337

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4 changes: 1 addition & 3 deletions lib/matplotlib/axes/_axes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,6 @@
import six
from six.moves import xrange, zip, zip_longest

from collections import Sized
import functools
import itertools
import math
Expand Down Expand Up @@ -3025,8 +3024,7 @@ def extract_err(err, data):
# special case for empty lists
if len(err) > 1:
fe = safe_first_element(err)
if (len(err) != len(data)
or isinstance(fe, Sized) and len(fe) > 1):
if (len(err) != len(data) or np.size(fe) > 1):
raise ValueError("err must be [ scalar | N, Nx1 "
"or 2xN array-like ]")
# using list comps rather than arrays to preserve units
Expand Down