nesting context managers

[Rami Chowdhury]

On Tue, Dec 20, 2011 at 14:15, Ulrich Eckhardt
<ulrich.eckhardt at dominolaser.com> wrote:
> Hi!
>
> Let us assume I had a class HTTPClient that has a socket for HTTP and a
> logfile for filing logs. I want to make this HTTPClient a context manager,
> so that I can write
>
>  with HTTPClient(url) as client:
>      pass
>
> and reliably have both the socket and the logfile closed. The easy way is
> wrong
>
>  def __enter__(self):
>      with self._mysock, self._myfile:
>          return self
>

It seems like some of the functions in the contextlib module might
help? You could try and reorganize your code so that you can use the
@contextmanager decorator, for instance?

That having been said, it doesn't seem that difficult to me to code
your own simple __exit__ method if you're already coding up __enter__
?

HTH,
Rami

-- 
Rami Chowdhury
"Never assume malice when stupidity will suffice." -- Hanlon's Razor
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