python calendar.HTMLCalendar

It’s hard to say without knowing exactly what you’re trying to accomplish, but here’s one idea.

Instead of printing myCal.formatmonth(2009, 7), why don’t you assign it to a string. Then you could manipulate it, perhaps with a regex.

Here’s a really bad example:

import calendar
import re

myCal = calendar.HTMLCalendar(calendar.SUNDAY)
myStr = myCal.formatmonth(2009, 7)

re.sub('28', '28<br/>[My Data]', myStr)

print myStr

It does what you want, but it’s pretty ugly.

The calendar module has usually been pretty useless, but in 2.5 it introduced the Calendar object. This won’t render an HTML calendar for you, but it has loads of methods that will help you render a calendar.

For example, monthdatescalendar(year, month) will give you a list of all weeks in the month given, where each week in turn is a list of the seven days. So monthdatescalendar(2009,7) will start with [[datetime.date(2009, 6, 29), datetime.date(2009, 6, 30), and end with datetime.date(2009, 8, 1), datetime.date(2009, 8, 2)]]

With this, it then becomes a trivial exercise to generate the HTML you want.

Create a new class inheriting from HTMLCalendar.
Override the formatday method.

Whoever makes comments like “this library is useless” obviously doesn’t understand Python.

class EmployeeScheduleCalendar(HTMLCalendar):
    def formatday(self, day, weekday):
        """
          Return a day as a table cell.
        """
        if day == 0:
            return '<td class="noday">&nbsp;</td>' # day outside month
        else:
            return '<td class="%s"><a href="%s">%d</a></td>' % (self.cssclasses[weekday], weekday, day)

You can subclass HTMLCalendar and override its methods in order to do whatever you want, like so: http://journal.uggedal.com/creating-a-flexible-monthly-calendar-in-django/

If you refer to the documentation for HTMLCalendar (http://svn.python.org/view/python/branches/release27-maint/Lib/calendar.py?view=markup), you’ll see that the formatday() method is very straightforward. Simply override it, as in the example linked above, to do whatever you’d like. So HTMLCalendar isn’t so pointless after all. 😉

You can create an HTMLcalendar object and then assign the class using the cssclasses attribute, later you just have to create the calendar using the formatmonth method, this is how I did it for a django app:

from calendar import HTMLCalendar

today = datetime.today()
    month = today.month
    year = today.year
    cal = HTMLCalendar()
    cal.cssclasses = ["mon text-bold", "tue", "wed", "thu", "fri", "sat", "sun red"]
    final_cal = cal.formatmonth(year, month)

This is my source: https://docs.python.org/3/library/calendar.html