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>
This is a preparatory commit for using isort for sorting all of our
imports, merging changes to files where we can easily review the
changes as something we're happy with.
These are also files with relatively little active development, which
means we don't expect much merge conflict risk from these changes.
Instead of deleting the emojis we will just mark them as `deactivated`.
This will prevent their further use but at the same time they will be
displayed properly in the reactions and messages in which they are used.
This field will be used as a flag to indicate whether the realm emoji
has been deleted or not.
Includes a database migration.
Anders Kaseorg
Tim Abbott
rht
Harshit Bansal