how to efficiently implement switch case in python code example

Example: switch statements python

# Here is one way to implement a switch construct
# Switcher is a dictionary data type here
def week(i):
    switcher={
        0:'Sunday',
        1:'Monday',
        2:'Tuesday',
        3:'Wednesday',
        4:'Thursday',
        5:'Friday',
        6:'Saturday'
    }
    return switcher.get(i,"Invalid day of week")

print(week(5)) # Call the function