Tim Peters <tim.one@comcast.net> writes: > > How will bool influence '__nonzero__'? Currently, Python insists that > > '__nonzero__ should return an int'. Will this be changed to 'should > > return a bool'? > > I hope so. > > > As that would break existing code, I hope not. > > No, "should" != "must". Guido won't call code that returns an int here > broken, although he might call it deprecated, and leave you wondering when > the hammer will drop <wink>. Interestingly enough, the exception message says "__nonzero__ should return an int" but really means "__nonzero__ must return an int". I guess under this PEP, the message needs to be changed to "should return a bool", but not the test (or, if you want it more explicit: "__nonzero__ must return an int and should return a bool" :-) Regards, Martin
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