After talking on tryton, about an issue related to calendar, they recommends to take off calendar modules dependences, and there are two modules depending on calendar
$ grep --include=tryton.cfg -ir calendar *
tryton/tmp/gnuhealth-3.2.6/trytond_calendar_webdav3/tryton.cfg: calendar.xml
tryton/tmp/calendar/tryton.cfg: calendar.xml
tryton/trytond/trytond/modules/health_calendar/tryton.cfg: calendar
tryton/trytond/trytond/modules/health_calendar/tryton.cfg: health_calendar_view.xml
tryton/trytond/trytond/modules/health_calendar/tryton.cfg: wizard/health_calendar_wizard.xml
tryton/trytond/trytond/modules/health_inpatient_calendar/tryton.cfg: calendar
tryton/trytond/trytond/modules/health_inpatient_calendar/tryton.cfg: health_inpatient_calendar_view.xml
Then , my quetsion is how have you gotten health runnning?
I also try using the pip install for gnu health without sucess with the same error
Any suggest?