Setting extensions for empty messages in python

[CARSON DEAN FENIMORE]

Let's say you have a message (A) that has an extension field (F) that
is a message (B) that no fields. To "set" F on an instance of A in c++
you would call instance.MutableExtension(F). It appears the python
analog is something like:

a = A()
a.Extensions[F]._Modified()

Is this correct?

[Kenton Varda]

Members that start with an underscore are private and may go away in the future.  Use SetInParent(), which is explicitly meant for this exact purpose:

  a.Extensions[F].SetInParent();

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[Kenton Varda]

On Tue, Aug 10, 2010 at 2:48 PM, Kenton Varda <ken...@google.com> wrote:

Members that start with an underscore are private and may go away in the future.  Use SetInParent(), which is explicitly meant for this exact purpose:

  a.Extensions[F].SetInParent();

Er, without the semicolon.  Sorry, I'm used to C++.