unindent does not match any outer indentation level

[cheusov]

I'm trying to run nbsvm.py script and see the following.

Traceback (most recent call last):
File "nbsvm.py", line 6, in
from tools import *
File "/home/cheusov/prjs/document_classification/tools.py", line 100
self.y_train, self.y_test = train_test_split(self.X, self.y,
^
IndentationError: unindent does not match any outer indentation level