def calculate_day(year,month,day):
if month==1: shift=0
elif month==2: shift=3
elif month==3: shift=3
elif month==4: shift=6
elif month==5: shift=1
elif month==6: shift=4
elif month==7: shift=6
elif month==8: shift=2
elif month==9: shift=5
elif month==10: shift=0
elif month==11: shift=3
elif month==12: shift=5
else: return "ERROR"
mytotal=(year-1900) + (year-1900)//4 + day + shift
if month<=2 and year%4==0: mytotal=mytotal-1
remainder = mytotal % 7
if remainder==0: return "Sunday"
elif remainder==1: return "Monday"
elif remainder==2: return "Tuesday"
elif remainder==3: return "Wednesday"
elif remainder==4: return "Thursday"
elif remainder==5: return "Friday"
elif remainder==6: return "Saturday"
else: return "ERROR"
calculate_day(2019,1,11)
'Friday'
from __future__ import print_function
from ipywidgets import interact, interactive, fixed, interact_manual
import ipywidgets as widgets
interact(calculate_day, year=widgets.IntSlider(min=1900, max=2019, step=1, value=1950), month=widgets.IntSlider(min=1, max=12, step=1, value=1), day=widgets.IntSlider(min=1, max=31, step=1, value=1))
interactive(children=(IntSlider(value=1950, description='year', max=2019, min=1900), IntSlider(value=1, descri…
<function __main__.calculate_day(year, month, day)>