Spurious old-style class warnings for Python 3 about astroid HOT 5 CLOSED

Original comment by Claudiu Popa (BitBucket: PCManticore, GitHub: @PCManticore):

I'm interested in this issue, I'll have a look in the weekend. In the past I investigated this problem, the only things left after adding your suggested check was that there were warnings about missing init (no-init warning) and .bases didn't contain object for Python 3, which could potentially lead to some problems (like missing attributes? although I'm not certain if this is the case).

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Original comment by Sylvain Thénault (BitBucket: sthenault, GitHub: @sthenault?):

Claudiu, imo the pb is simply that 'newstyle' attribute should always be
true w/ Python3. At some point we may want to inject 'object' in the base
classes but that shouldn't be necessary at a first glance.

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Original comment by Claudiu Popa (BitBucket: PCManticore, GitHub: @PCManticore):

Sure, agreed. I'll have a pull request ready in short time.

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Original comment by Claudiu Popa (BitBucket: PCManticore, GitHub: @PCManticore):

Hello. Please see
https://bitbucket.org/logilab/astroid/pull-request/18/all-class-nodes-are-marked-as-new-style/diff.

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Original comment by Sylvain Thénault (BitBucket: sthenault, GitHub: @sthenault?):

All class nodes are marked as new style classes for Py3k, closes #12.

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