sxjscience commented on a change in pull request #18876:
URL: https://github.com/apache/incubator-mxnet/pull/18876#discussion_r467322411
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File path: python/mxnet/symbol/numpy/_symbol.py
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@@ -8012,7 +8012,7 @@ def diagonal(a, offset=0, axis1=0, axis2=1):
# pylint:disable=redefined-outer-name, too-many-arguments
@set_module('mxnet.symbol.numpy')
-def sum(a, axis=None, dtype=None, out=None, keepdims=None, initial=None,
where=None):
+def sum(a, axis=None, dtype=None, out=None, keepdims=False, initial=None,
where=None):
Review comment:
@szha Figured out a bug in `symbol.sum` which does not hybridization.
Minimal reproducible:
```python
import mxnet as mx
from mxnet.gluon.nn import HybridBlock
mx.npx.set_np()
class Foo(HybridBlock):
def hybrid_forward(self, F, x):
return F.np.sum(x)
foo = Foo()
foo.hybridize()
out = foo(mx.np.ones((10, 10)))
out.asnumpy()
```
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