click-repl and click version 8-a2 (alpha version in master)

[KSchopmeyer]

Click version 8.0 is no in early alpha state and the code for autocompletion has been committed, essentially rewriting the autocomplete functionality.

As part of this work the _bashcomplete function in click.core which is used by click-repl has been completely removed from click which causes a click application that uses click_repl and is testing with the alpha click 8 to fail in startup.

click_repl/init.py", line 6, in import click._bashcomplete ModuleNotFoundError: No module named 'click._bashcomplete'

This means to be compatible with click 8.0 click_repl should add code to use the new autocomplete mechanism when use with clic >= 8.0. See the following for more information.

• click issue https://github.com/pallets/click/issues/1484
• click pr https://github.com/pallets/click/pull/1622/files?file-filters%5B%5D=.py&file-filters%5B%5D=.rst
• click preliminary changes documentation https://click.palletsprojects.com/en/master/changelog/#version-8-0
• click preliminary documentation on the new autocomplete https://click.palletsprojects.com/en/master/shell-completion/

[thedrow]

FYI This is preventing us from upgrading Celery to click 8.0.

[untitaker]

I need a volunteer to champion this and also take over maintainership (see #73)