python - Get Day name from Weekday int

Question

I have a weekday integer (0,1,2...) and I need to get the day name ('Monday', 'Tuesday',...).

Is there a built in Python function or way of doing this?

Here is the function I wrote, which works but I wanted something from the built in datetime lib.

def dayNameFromWeekday(weekday):
    if weekday == 0:
        return "Monday"
    if weekday == 1:
        return "Tuesday"
    if weekday == 2:
        return "Wednesday"
    if weekday == 3:
        return "Thursday"
    if weekday == 4:
        return "Friday"
    if weekday == 5:
        return "Saturday"
    if weekday == 6:
        return "Sunday"

Answer 1

It is more Pythonic to use the calendar module:

>>> import calendar
>>> list(calendar.day_name)
['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']

Or, you can use common day name abbreviations:

>>> list(calendar.day_abbr)
['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']

Then index as you wish:

>>> calendar.day_name[1]
'Tuesday'

(If Monday is not the first day of the week, use setfirstweekday to change it)

Using the calendar module has the advantage of being location aware:

>>> import locale
>>> locale.setlocale(locale.LC_ALL, 'de_DE')
'de_DE'
>>> list(calendar.day_name)
['Montag', 'Dienstag', 'Mittwoch', 'Donnerstag', 'Freitag', 'Samstag', 'Sonntag']