Scheduling support

I fixed some testing accounts on DAViCal and ran through some test code that I made long ago - found some broken code and fixed it. Scheduling should be supported

* fixes #163
* fixes #125

Author: tobixen

CHANGELOG.md

@@ -12,7 +12,13 @@ In version 2.0, the requests library will be replaced with niquests or httpx.  S
 
 In version 2.0, support for python 3.7 and python 3.8 will be officially dropped.  Master branch *should* support both as for now, but Python 3.7 is no longer tested.
 
-## [1.5.0] - [Unreleased]
+## [1.6.0] - [Unreleased]
+
+### Fixed
+
+* Scheduling support.  It was work in progress many years ago, but uncompleted work was eventually committed to the project.  I managed to get a DAViCal test server up and running with three test accounts, ran through the tests, found quite some breakages, but managed to fix up.  https://github.com/python-caldav/caldav/pull/497
+
+## [1.5.0] - 2025-05-24
 
 Version 1.5 comes with support for alarms (searching for alarms if the server permits and easy interface for adding alamrs when creating events), lots of workarounds and fixes ensuring compatibility with various servers, refactored some code, and done some preparations for the upcoming server compatibility hints project.
 

caldav/calendarobjectresource.py

@@ -543,6 +543,10 @@ def is_invite_request(self) -> bool:
         self.load(only_if_unloaded=True)
         return self.icalendar_instance.get("method", None) == "REQUEST"
 
+    def is_invite_reply(self) -> bool:
+        self.load(only_if_unloaded=True)
+        return self.icalendar_instance.get("method", None) == "REPLY"
+
     def accept_invite(self, calendar: Optional["Calendar"] = None) -> None:
         self._reply_to_invite_request("ACCEPTED", calendar)
 
@@ -729,7 +733,7 @@ def change_attendee_status(self, attendee: Optional[Any] = None, **kwargs) -> No
             if self.client is None:
                 raise ValueError("Unexpected value None for self.client")
 
-            attendee = self.client.principal_address or self.client.principal()
+            attendee = self.client.principal()
 
         cnt = 0
 

tests/test_caldav.py

@@ -490,7 +490,7 @@ def teardown_method(self):
             except error.NotFoundError:
                 pass
         for c in self.clients:
-            c.teardown()
+            c.teardown(c)
 
     ## TODO
     # def testFreeBusy(self):