[Python-ideas] adding an __exec__ method to context managers?

Ben Finney ben+python at benfinney.id.au
Tue Oct 13 08:22:05 CEST 2009

Carl Johnson
<cmjohnson.mailinglist at gmail.com> writes:

> Taking a step back, it seems like what you really want is some easy
> way to create callbacks, just like Ruby blocks or the new Objective-C
> blocks. There are a number of ways this could be done:


Unless I misunderstand one or more of the options you present, you've
omitted the most obvious way under current Python: create a function
using ‘def’ and use the name to refer to that function object.

> Frankly I think this list is going to face proposals for some block
> substitute or another every couple months between now and whenever
> Python finally allows for some more readable way of passing functions
> to other functions.

What is insufficiently readable about::

  def foo(spam):
      return process_warble(spam)


 \      “I went to a garage sale. ‘How much for the garage?’ ‘It's not |
  `\                                        for sale.’” —Steven Wright |
_o__)                                                                  |
Ben Finney

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