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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 a3db3494c..c291cf587 100644
--- a/numpy/lib/function_base.py
+++ b/numpy/lib/function_base.py
@@ -1715,7 +1715,7 @@ def gradient(f, *varargs, **kwargs):
slice4 = [slice(None)]*N
otype = f.dtype.char
- if otype not in ['f', 'd', 'F', 'D', 'm', 'M']:
+ if otype not in ['f', 'd', 'F', 'D', 'm', 'M', 'e']:
otype = 'd'
# Difference of datetime64 elements results in timedelta64