converts between Gregorian dates and other calendar systems (Python 3)

 Convertdate allows you to generate calendars according to different
 historical or modern systems:
 .
 Available calendars:
 .
  * Bahai
  * Coptic (Alexandrian)
  * French Republican
  * Gregorian
  * Hebrew
  * Indian Civil
  * Islamic
  * Julian
  * Mayan
  * Persian
  * Positivist
  * Mayan
  * ISO
  * Ordinal (day of year)
  * Dublin day count
  * Julian day count
 .
 The holidays module also provides some useful holiday-calculation,
 with a focus on North American and Jewish holidays.
 .
 This package ships the Python 3 version.