Treelib not working any longer on Google colab or https://jupyter.org/

[mariomuellergermany]

Hi,

I was already using the library and really enjoyed. But now it is not working any longer.

Im am using the code:

`%pip install treelib from treelib import Node, Tree tree = Tree() tree.create_node("Harry", "harry") # root node tree.create_node("Jane", "jane", parent="harry") tree.create_node("Bill", "bill", parent="harry") tree.create_node("Diane", "diane", parent="jane") tree.create_node("Mary", "mary", parent="diane") tree.create_node("Mark", "mark", parent="jane") tree.show()

The result is: b'Harry\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 Bill\n\xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 Jane\n \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 Diane\n \xe2\x94\x82 \xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 Mary\n \xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 Mark\n'`

Was there an update? Why does it not work any longer?

thanks regards, Mario

[realjanpaulus]

I had the same problem, it is since this change: https://github.com/caesar0301/treelib/commit/8cd2940ebe5749afd4b9e0ebfe2ff2b358c2e42f . Something with encoding is weird here.

My current workaround:

# old, both giving the weird encoding
tree.show()
print(tree.show())

# new
print(tree.show(stdout=False))

This bypasses the forced encoding of UTF-8:

https://github.com/caesar0301/treelib/blob/7e1daf126bceeded2698d583d847bd7fae0880d8/treelib/tree.py#L931-L934

[tomol012]

Same problem here, although not related Colab or Jupyter in any way. For me it doesn't work in VS Code, Python 3.9.13. I downgraded to 1.6.4 and all is good again.

The workaround from @realjanpaulus is not acceptable to me, because newlines are not displayed in output which means the whole tree is printed as one line, defeating the purpose of the function.

[shaongitbd]

First save tree using tree.save2file("tree.txt") then open it using text editor