This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py. The basics/ subdirectory is excluded for now so we
aren't changing too much at once.
In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
As mentioned in #4450, `websocket` was experimental with a single intended
user, `webrepl`. Therefore, we'll make this change without a weak
link `websocket` -> `uwebsocket`.
This is so that the filename of the test doesn't clash with the module name
itself (being "websocket"), and lead to potential problems executing the
test.
David Lechner
Yonatan Goldschmidt
Paul Sokolovsky
Damien George