[Python-Dev] Tricky way of of creating a generator via a comprehension expression (original) (raw)
Ivan Levkivskyi levkivskyi at gmail.com
Wed Nov 22 11:47:38 EST 2017
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On 22 November 2017 at 17:43, Paul Moore <p.f.moore at gmail.com> wrote:
On 22 November 2017 at 16:30, Ivan Levkivskyi <levkivskyi at gmail.com> wrote: > On 22 November 2017 at 17:24, Antoine Pitrou <solipsis at pitrou.net> wrote: >> Given a comprehension (e.g. list comprehension) is expected to work >> nominally as
constructor(generator expression)> > As Yury just explained, these two are not equivalent if there is anawait> in the comprehension/generator expression.As Antoine said, people expect them to work the same.
The difference is that a generator expression can be used independently, one can assign it to a variable etc. not necessary to wrap it into a list() Anyway, can you propose an equivalent "defining" code for both? Otherwise it is not clear what you are defending.
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