Steven D'Aprano wrote:
Your example shows the proposed:
[*(language, text) for language, text in fulltext_tuples if language ==
which can be written as:
[x for language, text in fulltext_tuples for x in (language, text) if
language == 'english']
which is only ten characters longer. To me, though, there's simply no
nice way of writing this: the repetition of "language, text" reads
poorly regardless of whether there is a star or no star.
I think the ugliness of this particular example has roots in
the fact that a tuple rather than an object with named fields
is being used, which is going to make *any* piece of code
that touches it a bit awkward.
If it were a namedtuple, for example, you could write
[*t for t in fulltext_tuples if t.language == 'english']
[x for t in fulltext_tuples if t.language == 'english' for x in t]
The latter is a bit unsatisfying, because we are having to
make up an arbitrary name 'x' to stand for an element of t.
Even though the two elements of t have quite different roles,
we can't use names that reflect those roles.
Because of that, to my eyes the version with * makes it easier
to see what is going on.
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