Hi Fabio,

Thanks for the patch and for contributing to GNU Guix.

This update to python-icalendar breaks xandikos:

https://toys.whereis.みんな/?search=xandikos https://toys.whereis.xn--q9jyb4c/?search=xandikos 

Updating xandikos would require an update to python-dulwich.

The latest release of python-dulwich requires packaging various Rust crates.

todoman is currently/previously broken from what I see so we can ignore that as a blocker for updating python-icalendar.

I realize that this increases the scope of updating python-icalendar.

Try the following command to see what packages depend on python-icalendar:

guix refresh -l python-icalendar

all best,

jgart