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September 12, 2019 10:23
case an iterator is preferrable over a list creation for efficiency reasons.
nodes as its companion method Tree.children().
Owner
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It seems as duplicated as method |
Author
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Not really. Doing an iter(children()) would first create a list then iterate over it while children_itr() would just create the iterator. In the first case memory usage is O(N), in the second is O(1). |
crabhi
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Mar 20, 2020
| @@ -296,6 +296,13 @@ def children(self, nid): | |||
| """ | |||
| return [self[i] for i in self.is_branch(nid)] | |||
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High, just a quick note - this method could now be implemented equivalently as list(self.children_itr(nid)). That might address @caesar0301's comment re. redundancy.
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In case creating a list like Tree.children() does is too heavy for efficiency reasons.