__all__ attribute: bug and proposal
steve at pearwood.info
Mon Jun 27 23:24:51 EDT 2016
On Tue, 28 Jun 2016 12:46 pm, Terry Reedy wrote:
> On 6/27/2016 6:29 PM, Pavel S wrote:
>> Frankly, do you always unit-test if __all__ works?
> One should. CPython's test suite includes test___all__. I believe it
> imports every stdlib module, looks for __all__, and if present, tests
> that it works. It probably executes 'from module import *'. A side
> effect is testing that everything imports. I am pretty sure that
> test___all__ has caught bugs.
I write my own unit tests for __all__, which has certainly caught bugs.
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
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