subprocess module and long-lived subprocesses

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(Apologies for the non-threaded reply.  My subscription to the list is
currently set to no-mail and I can't get to gmane.org, so have no clean way
to reply...)

Mike Fletcher wrote:

> Definitely *will* block, you have to explicitly set them non-blocking to
> have non-blocking behaviour:

  ...

> .... I think everyone winds up with their own wrapper around subprocess
> after they use it for more than a short period...

Thanks, that saves me much head scratching.

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