日本語カレンダーをHTMLフォーマットで生成 Python3.6

import calendar

c= calendar.LocaleHTMLCalendar(firstweekday=6,locale='ja_JP.UTF-8') #6=sunday
h= c.formatyear(2018,width=3) #3months in line

with open('calendar.html','w') as f:
    f.write(h)