[Python-ideas] Allow specifying list of functions to `map`

[Chris Angelico]

On Mon, Mar 31, 2014 at 4:59 AM, Ram Rachum <ram.rachum at gmail.com> wrote:
> If `map` accepted a tuple for its first argument, things like this:
>
>     stdout, stderr = map(str.strip, map(bytes.decode, popen.communicate()))
>
> Could become this:
>
>     stdout, stderr = map((bytes.decode, str.strip), popen.communicate())

stdout, stderr = map(lambda x: x.decode().strip(), popen.communicate())

Or:

stdout, stderr = popen.communicate()
stdout = stdout.decode().strip()
stderr = stderr.decode().strip()

Yes, the latter is a bit of duplication, but it's clear what's going
on. (Obviously appropriate only where you know exactly how many
elements there'll be, as in your example.)

ChrisA