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: 8cd2940 . 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:

treelib/treelib/tree.py

Lines 931 to 934 in 7e1daf1

	if stdout:
	print(self._reader.encode("utf-8"))
	else:
	return self._reader

[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