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-rw-r--r--numpy/lib/function_base.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py
index 8bde521bf..48922721f 100644
--- a/numpy/lib/function_base.py
+++ b/numpy/lib/function_base.py
@@ -782,7 +782,7 @@ def histogram(a, bins=10, range=None, normed=False, weights=None,
bins = bin_edges
else:
bins = asarray(bins)
- if not np.all(bins[1:] > bins[:-1]):
+ if np.any(bins[1:] <= bins[:-1]):
raise ValueError(
'bins must increase monotonically.')