Script to calculate your biorhythm

biorhythm.py

from datetime import datetime, timedelta
import math

def calculate_biorhythm(birthday, current_date, rhythm_type):

  days_difference = (current_date - birthday).days
  
  if rhythm_type == 'physical':
    cycle = 23
  elif rhythm_type == 'emotional':
    cycle = 28
  elif rhythm_type == 'intellectual':
    cycle = 33
  
  biorhythm = round(math.sin(2 * math.pi * days_difference / cycle), 2)
  
  return biorhythm

current_date = datetime.now()

biorhythm_p = calculate_biorhythm(datetime.strptime('1900-01-01', '%Y-%m-%d'), current_date, 'physical')
biorhythm_e = calculate_biorhythm(datetime.strptime('1900-01-01', '%Y-%m-%d'), current_date, 'emotional')
biorhythm_i = calculate_biorhythm(datetime.strptime('1900-01-01', '%Y-%m-%d'), current_date, 'intellectual')

print('Physical: ' + str(biorhythm_p))
print('Emotional: ' + str(biorhythm_e))
print('Intellectual: ' + str(biorhythm_i))