Generated by `pyupgrade --py3-plus --keep-percent-format` on all our
Python code except `zthumbor` and `zulip-ec2-configure-interfaces`,
followed by manual indentation fixes.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Hellosign now posts their callback as form/multipart, which Django only
permits to be read once. Attempts to access request.body after the
initial read throw "django.http.request.RawPostDataException: You
cannot access body after reading from request's data stream".
Fixes#13847.
After discovering a couple of bugs, I decided to thoroughly test
and rewrite this integration from scratch. The older code wasn't
generating coherent messages.
This also commit gets this integration up to 100% test coverage.
Anders Kaseorg
Chris Heald
Tim Abbott
Steve Howell
Eeshan Garg
Aditya Bansal
Preston Hansen
rht
Tomasz Kolek