WordPress: How generate automatically a POT file.

For a plugin or theme developer, manage multilingualism can be a very boring task.
I am just discovering a tool allowing to generate automatically the POT file.

Perhaps you already know this tool, I don’t know since how long it is available, but I never saw it before.

We can use it from plugin management interface of WordPress.org.

Plugin management interface
Plugin management interface

The only disadvantage is that it requires to upload plugin before generating POT file.