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Stephan Stylianides1,317 Points
Code for def __repr__(self) in GitHub is incorrect.
line 11 and line 15 in the code is not correct... the function should be:
def __repr__(self): """ Return a string representation of the list. Takes O(n) time. """ nodes =  current = self.head while current: if current is self.head: nodes.append("[Head: %s]" % current.data) elif current.next_node is None: nodes.append("[Tail: %s]" % current.data) else: nodes.append("[%s]" % current.data) current = current.next_node return '-> '.join(nodes)