Raymond Hettinger wrote:
> lastname_firstname = lambda r: (r[0].lower(), r[5].lower())
> for k, g in groupby(iterable, key=lastname_firstname): ...
>
> That transformation adds clarity. Going further and creating a separate
> def-statement outside the current function would just move the relevant
> code farther away and impair readability.
It doesn't have to be outside the function -- it can be
in exactly the same place as the lambda assignment above.
def lastname_firstname(r):
return (r[0].lower(), r[5].lower())
for k, g in groupby(iterable, key=lastname_firstname):
...
Maybe "def is an executable statement" is another thing
people have a blind spot about?
--
Greg
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