gistfile1.py

#!/bin/python

import sys, math

def usage():
	print("Usage: SetDifference.py NUM_1 NUM_2 ...")


def formatArrayToStr(factors):
	string = ""
	for x in xrange(0,len(factors)):
		string = string + str(factors[x])
		if x != len(factors)-1:
			string = string + ", "
		if x == len(factors)-2:
			string += "and "
	return string

def validateArgs(args):
	for x in xrange(0, len(args)):
		if type(args[x]) is not float:
			return False
	return True

def convertArgs(args):
	newArgs = []
	for arg in args:
		newArg = float(arg)
		if math.isnan(newArg):
			print("error converting args!")
			raise SystemExit(2)
		newArgs.append(newArg)
	return newArgs

def main(args):
	if len(args) <= 1:
		print("error! not enough args")
		usage()
		raise SystemExit(2);
		return;

	args.pop(0)
	newArgs = convertArgs(args)

	degrees = []
	degrees.append(newArgs);
	for i in range(1, 6):
		lastDegree = degrees[i - 1]
		degree = []
		for x in xrange(1,len(lastDegree)):
			degree.append(lastDegree[x] - lastDegree[x-1])
		degrees.append(degree)

	for x in xrange(0, len(degrees)):
		degree = degrees[x]
		sys.stdout.write(str(x) + '\t')
		for space in xrange(0, x): sys.stdout.write('\t')
		for y in xrange(0,len(degree)):
			sys.stdout.write(str(degree[y]))
			sys.stdout.write('\t')
		sys.stdout.write("\n")
	sys.stdout.write("\n")

if __name__ == "__main__":
	args = sys.argv
	# print(args)
	main(args)