--- a/create_school_cals.py	Wed Aug 16 18:14:22 2023 -0700
+++ b/create_school_cals.py	Tue Aug 22 12:47:28 2023 -0700
@@ -43,7 +43,7 @@
     for calId, school, grade, startHM in [
         (calIdForPerson['twins'], 'john muir', 'K', (9, 10)),
         (calIdForPerson['asher'], 'john muir', '2', (9, 0)),
-        (calIdForPerson['ari'], 'BHS', '9', (8, 30)),
+        (calIdForPerson['ari'], 'BHS', '9th', (8, 30)),
     ]:
         if busdHoliday(s):
             continue
@@ -58,15 +58,17 @@
             endHM = (14, 15)
         elif grade == '2':
             endHM = (14, 15) if s.weekday() == 2 else (15, 10)
-        elif grade == '9':
+        elif grade == '9th':
             endHM = (14, 50) if s.weekday() == 2 else (15, 30)
+            if s.weekday() == 0:
+                startHM = (10, 0)
         s = s.replace(hour=startHM[0], minute=startHM[1])
         e = s.replace(hour=endHM[0], minute=endHM[1])
 
         # schema: https://developers.google.com/calendar/api/v3/reference/events#resource-representations
         event = {
             'summary': summary,
-            'description': 'auto-gen v1',
+            'description': 'auto-gen v2',
             'start': {
                 'dateTime': s.isoformat()
             },

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/create_school_cals_2.py	Tue Aug 22 12:47:28 2023 -0700
@@ -0,0 +1,31 @@
+import datetime
+import json
+from pprint import pprint
+
+import tzlocal
+
+from calendar_connection import getCalendarService
+
+calIdForPerson = json.load(open('gcalendarwatch.conf'))['calId']
+
+service = getCalendarService()
+
+
+def find(calId, s: datetime.datetime, e: datetime.datetime, summary: str):
+    res = service.events().list(
+        calendarId=calId,
+        timeMin=s.isoformat(),
+        timeMax=e.isoformat(),
+        q=summary,
+        maxResults=2500,
+    ).execute()
+    for item in res['items']:
+        if item['summary'] != summary:
+            continue
+        yield item['id']
+
+
+s = datetime.datetime(2023, 8, 1, tzinfo=tzlocal.get_localzone())
+e = datetime.datetime(2024, 7, 1, tzinfo=tzlocal.get_localzone())
+for id in find(calIdForPerson['ari'], s=s, e=e, summary="BHS 9"):
+   service.events().delete(calendarId=calIdForPerson['ari'], eventId=id).execute()