Question about Google Calendar API and create multiple Calendars - list

Question

I would like to create a script in python that creates events for me for each individual user, I know how to get the list of calendars, but I would like the script to check if there is already a calendar available with that user name and if there isn't one, it creates one, in a way.
Thanks
from datetime import datetime, timedelta
from cal_setup import get_calendar_service
currentDateTime = datetime.now()
userfinder = 'Tuxone'
#Create a new calendar
calendar_name = userfinder
calendar = {
'summary': calendar_name,
'timeZone': 'America/Los_Angeles'
}
created_calendar = get_calendar_service().calendars().insert(body=calendar).execute()
#Print calendar list
# # calendar_list_entry = get_calendar_service().calendarList().get(calendarId=created_calendar['id']).execute()
# # print(calendar_list_entry)
def main():
# creates one hour event tomorrow 10 AM IST
service = get_calendar_service()
d = datetime.now().date()
tomorrow = datetime(d.year, d.month, d.day, 10)+timedelta(days=1)
start = tomorrow.isoformat()
end = (tomorrow + timedelta(hours=1)).isoformat()
event_result = service.events().insert(calendarId='ici1sgh7untsn7650edoknqblk#group.calendar.google.com',
body={
"summary": f'{currentDateTime}',
"description": 'This is a tutorial example of automating google calendar with python',
"start": {"dateTime": start, "timeZone": 'Asia/Kolkata'},
"end": {"dateTime": end, "timeZone": 'Asia/Kolkata'},
}
).execute()
print("created event")
print("id: ", event_result['id'])
print("summary: ", event_result['summary'])
print("starts at: ", event_result['start']['dateTime'])
print("ends at: ", event_result['end']['dateTime'])
if __name__ == '__main__':
main()