Displaying a calendar

[oldDog]

I've been trying to display a calendar month using Python3.6 and whilst the code works perfect from the command-line it only produces a list of errors if i try to display from a file in Atom text editor. Hope someone can help please.

#!/usr/bin/env python3.6 

# import module
import calendar

yy = 2018
mm = 11

# To ask month and year from the user
# yy = int(input("Enter year: "))
# mm = int(input("Enter month: "))

# display the calendar
print(calendar.month(yy, mm))