v4.8.0

Features

Lazy Loading --help improvements.

Previously, running --help on a parent command would import and resolve all lazy child commands, negating much of the startup-time benefits. Now, parent --help displays lazy commands without triggering any imports.

To show descriptions for lazy commands in --help output, provide help= at registration time:

app.command("myapp.commands:deploy", help="Deploy the application.")

Other metadata (group=, show=, sort_key=) can also be provided at registration time and will be used for help display without resolving the command.

Lazy commands are now only resolved when:

• The specific command is executed
• The specific command's own --help is requested (e.g., myapp deploy --help)
• The command is accessed directly via app["command_name"]

Thanks to @zzstoatzz for the initial contribution in #757.

Full Changelog: v4.7.0...v4.8.0