Set Operations.txt

import Ryan
import os

#get working directory
mydir = os.getcwd()

#now create a variable with the actual address of the file
infile = mydir + "\\Set Operations.txt"

f = open(infile, 'r')

#open an additional file to write output to
g = open("Set Operations output.txt", 'w')

#empty list
l=[]

#add lines of file to list
for line in f:
    l.append(line.strip())

#convert string to proper int
n = eval(l[0])

#initialize the universal set and fill with numbers up including n
U = set({})
for i in range(n):
    U.add(i+1)

#create sets from the input file
A = eval(l[1])
B = eval(l[2])

#basic set operations
unionAB = A|B
intersectionAB = A & B
AminusB = A - B
BminusA = B - A
Acompliment = U - A
Bcompliment = U - B

#write them to file
g.write(str(unionAB) + '\n')
g.write(str(intersectionAB) + '\n')
g.write(str(AminusB) + '\n')
g.write(str(BminusA) + '\n')
g.write(str(Acompliment) + '\n')
g.write(str(Bcompliment))

g.close()
f.close()