DuckDuckGo Implement "1. Feeding the masses"

DuckDuckGo/feeding_the_masses.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+import sys
+from math import ceil
+
+
+def calculate(ducks, bread_nutritiousness, bread_price):
+	loafs = ceil(ducks / bread_nutritiousness)
+	money_required = loafs * bread_price
+	return money_required
+
+def main(argv):
+	while True:
+		try:
+			ducks = int(input("How many ducks? "))
+			bread_nutritiousness = float(input("A single loaf feeds this many ducks: "))
+			bread_price = float(input("Bread price per loaf: "))
+		except ValueError:
+			print("Come again?")
+			continue
+		else:
+			if ducks <= 0:
+				print("Ducks too ephemeral to feed on bread!")
+				return 1
+			elif bread_nutritiousness <=0:
+				print("Bread is devouring ducks!")
+				return 2
+			elif bread_price <= 0:
+				print("Have you invested into bread futures?")
+				return 3
+			else:
+				money_required = calculate(ducks,
+	                           bread_nutritiousness,
+	                           bread_price)
+				print("--------------")
+				print("Money to spend: ", money_required)
+	return 0
+
+if __name__ == '__main__':
+	sys.exit(main(sys.argv))