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Re: How to make Python interpreter a little more strict?

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On 27/03/2016 21:32, Tim Chase wrote:
> On 2016-03-27 14:28, Steven D'Aprano wrote:

>> In this case, the two lines "fnc" and "next" simply look up the
>> function names, but without actually calling them. They're not
>> quite "no-ops", since they can fail and raise NameError if the name
>> doesn't exist, but otherwise they might as well be no-ops.
>
> Which is actually useful.  I've got some 2.4 code that reads
>
>    try:
>      any
>    except NameError:
>      def any(...):
>        ...
>
> (with a similar block for all() )
>
> I don't want to call any() or all(), I simply want to test whether
> they exist.

But would it have been much of an imposition to have typed:

     try:
       test = any
     except NameError:
       def any(...):
         ...

? (Or any of the half dozen ways there must be to test the existence of 
a name.)

-- 
Bartc

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Thread

Re: How to make Python interpreter a little more strict? John Pote <johnhpote@o2.co.uk> - 2016-03-26 23:30 +0000
  Re: How to make Python interpreter a little more strict? BartC <bc@freeuk.com> - 2016-03-27 00:36 +0000
  Re: How to make Python interpreter a little more strict? Steven D'Aprano <steve@pearwood.info> - 2016-03-27 14:28 +1100
    Re: How to make Python interpreter a little more strict? Tim Chase <python.list@tim.thechases.com> - 2016-03-27 15:32 -0500
      Re: How to make Python interpreter a little more strict? BartC <bc@freeuk.com> - 2016-03-27 21:49 +0100
        Re: How to make Python interpreter a little more strict? Chris Angelico <rosuav@gmail.com> - 2016-03-28 07:59 +1100
        Re: How to make Python interpreter a little more strict? Steven D'Aprano <steve@pearwood.info> - 2016-03-28 12:24 +1100
  Re: How to make Python interpreter a little more strict? Nobody <nobody@nowhere.invalid> - 2016-03-28 00:26 +0100

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