Does not work for Huffman trees

[deb17]

Hi,

drawtree works for integer nodes. I was trying to draw a huffman tree with it - it gave an error when trying to do an int conversion of a letter. The code is in deserialize function:

nodes = [None if val == '#' else TreeNode(int(val))
             for val in string.strip('[]{}').split(',')]

When I removed the int call, I got the tree. Is it not possible to support alphanumeric nodes by doing so?

Regards.