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-rw-r--r--numpy/lib/arraysetops.py6
1 files changed, 3 insertions, 3 deletions
diff --git a/numpy/lib/arraysetops.py b/numpy/lib/arraysetops.py
index df9a110c5..6a2ad004c 100644
--- a/numpy/lib/arraysetops.py
+++ b/numpy/lib/arraysetops.py
@@ -278,7 +278,7 @@ def unique(ar, return_index=False, return_inverse=False,
ar = np.moveaxis(ar, axis, 0)
except np.AxisError:
# this removes the "axis1" or "axis2" prefix from the error message
- raise np.AxisError(axis, ar.ndim)
+ raise np.AxisError(axis, ar.ndim) from None
# Must reshape to a contiguous 2D array for this to work...
orig_shape, orig_dtype = ar.shape, ar.dtype
@@ -300,10 +300,10 @@ def unique(ar, return_index=False, return_inverse=False,
# array with shape `(len(ar),)`. Because `dtype` in this case has
# itemsize 0, the total size of the result is still 0 bytes.
consolidated = np.empty(len(ar), dtype=dtype)
- except TypeError:
+ except TypeError as e:
# There's no good way to do this for object arrays, etc...
msg = 'The axis argument to unique is not supported for dtype {dt}'
- raise TypeError(msg.format(dt=ar.dtype))
+ raise TypeError(msg.format(dt=ar.dtype)) from e
def reshape_uniq(uniq):
n = len(uniq)