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I have noticed that there are suspicious similarities between these two users:
The two have both asked several questions in the last couple of hours, all of them related to lists in Python. Secondly, all of these questions seems to follow the same format:
I have these lists. How can I do this?
Without providing any code they had tried.
After this comment (which 6 people seem to agree with me on) I made on one of the questions, the stream of questions from both users seemed to stop abruptly. They both also seem to use the wxpython and matplotlib quite a bit at well.
There is also this question, in which one accepted another's answer, although that could just be a coincidence, as I haven't found another question like that so far.
However, one seems to have been on SO for much longer than the other (10 months), so I could be wrong here.