AttributeError: 'NoneType' object has no attribute 'traverse_tree' about baltic HOT 2 CLOSED

Hi Cole,

I believe this will be caused by the fact that .subtree() will return None if the conditional traversal doesn't encounter any tips. This can happen if you initiate a traversal on a node in state B but all of the node's children are in another state and since there's no tips in the conditional subtree there's no subtree to be extracted. I think I had the code set up correctly for Ebola exploded trees but didn't bother for flu B because I knew all the traversals would be fine. You can test if this is the case by traversing the subtree with the same condition (should be ll.traverse_tree(k, traverse_condition=traverse_condition, reset_branches=False)) and seeing if any tips are returned.

Thanks for spotting this!

Best,
Gytis

from baltic.

This was it! Thank you!

from baltic.