Message219552
The constructor tries __trunc__ (truncate toward 0) if __int__ isn't defined. If __trunc__ doesn't return an instance of int, it calls the intermediate result's __int__ method. In terms of the numbers ABCs, numbers.Real requires __trunc__, which should return a numbers.Integral, which requires __int__.
The special methods __trunc__, __floor__, and __ceil__ aren't documented in the language reference. They're mentioned briefly in the docs for the math functions trunc, floor, and ceil. |
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2014-06-02 07:34:13 | eryksun | set | recipients:
+ eryksun, rhettinger, ezio.melotti, docs@python, zach.ware, and |
2014-06-02 07:34:13 | eryksun | set | messageid: <1401694453.0.0.341030596727.issue21611@psf.upfronthosting.co.za> |
2014-06-02 07:34:12 | eryksun | link | issue21611 messages |
2014-06-02 07:34:12 | eryksun | create | |
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