ICS Google-Calendar Unmerge

ics_google_calendar_unmerge.py

# Added .ics file mistakenly to google calendar? Undo using this script.
# Iterate over all events and delete ones with icalUID which contains a unique identifier of events in the .ics file

# %%
# pip install gcsa
from gcsa.google_calendar import GoogleCalendar
from datetime import datetime

TARGET_GOOGLE_CALENDAR_NAME = None  # None => default calender
ICALUID_IDENTIFIER = "some_name"  # icalUID
gc = GoogleCalendar("your_google_address@gmail.com")

# %%
calendars = gc.get_calendar_list()
calendar_id = [c for c in calendars if c.description == TARGET_GOOGLE_CALENDAR_NAME][0].id

# %%
events_for_deletion = [e for e in gc.get_events(datetime.min, datetime.max, calendar_id=calendar_id) if ICALUID_IDENTIFIER in e.other['iCalUID']]
iter_len = len(events_for_deletion)
print(f"Process will delete {iter_len} events")

# %%
for i, e in enumerate(events_for_deletion): 
    print(f"{i+1}/{iter_len}: Deleting {e} for calender {TARGET_GOOGLE_CALENDAR_NAME}")
    gc.delete_event(e.id, calendar_id=calendar_id)