how to write python's standard calendar code example

Example 1: how to make sun as first day in calendar python

import calendar

# to set the first weekday to SUNDAY.
calendar.setfirstweekday(calendar.SUNDAY)
print(calendar.month(2020, 10 ))

Example 2: python calendar table view

class CustomHTMLCal(calendar.HTMLCalendar):
    cssclasses = [style + " text-nowrap" for style in
                  calendar.HTMLCalendar.cssclasses]
    cssclass_month_head = "text-center month-head"
    cssclass_month = "text-center month"
    cssclass_year = "text-italic lead"