comaniac commented on a change in pull request #7175:
URL: https://github.com/apache/tvm/pull/7175#discussion_r549814017
##########
File path: python/tvm/autotvm/task/space.py
##########
@@ -836,7 +836,7 @@ def _add_new_transform(self, space_class, name, axes,
policy, **kwargs):
return [Axis(None, i) for i in range(space_class.get_num_output(axes,
policy, **kwargs))]
def __len__(self):
- if self._length is None:
+ if self._length is None and len(self.space_map.values()) != 0:
self._length = int(np.prod([len(x) for x in
self.space_map.values()]))
return self._length
Review comment:
I found that this change is incorrect. `__len__` has to return an
integer, but in this case it will return `None`.
```suggestion
if not self.space_map:
return 0
if self._length is None:
self._length = int(np.prod([len(x) for x in
self.space_map.values()]))
return self._length
```
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