I think I have a repro for this with a single quote ' , as opposed to
triple string. I think I started seeing this hang after upgrading to Emacs
28.2. I now hit it very often, it's pretty painful. I don't know for sure
that it's the same bug, but it seems likely. Reproduces with emacs -Q:

======
class Foo():

  def __init__(self):
    '

  def bar(self):
    """Fetches posts and converts them to ActivityStreams activities.
    See source.Source.get_activities_response for details. app_id is
    ignored. min_id is translated to Twitter's since_id.
    """
    pass
======

The single quote and multiple lines in the docstring are necessary for the
repro. No extra newline at the end needed though.

JD, do you have a workaround for this? I may look into overriding
python-nav-end-of-defun until it's fixed. Any other ideas?

My emacs-version: GNU Emacs 28.2 (build 1, aarch64-apple-darwin21.1.0, NS
appkit-2113.00 Version 12.0.1 (Build 21A559)) of 2022-09-12

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