import csv
with open('enjoysport.csv', 'r') as file:
    data = [row for row in csv.reader(file)] #list comprehension
    print("The total number of training instances are:",len(data)-1,'\n',data[1:])

num_attribute = len(data[0])-1

# Initial hypothesis
hypothesis = ['0']*num_attribute

for i in range(0, len(data)):
    if data[i][num_attribute] == 'yes':
        for j in range(0, num_attribute):
            if hypothesis[j] == '0' or hypothesis[j] == data[i][j]:
                hypothesis[j] = data[i][j]
            else:
                hypothesis[j] = '?'
    print("\nThe hypothesis for the training instance {} is : \n".format(i),hypothesis)

print("\nThe Maximally specific hypothesis for the training instances is ", hypothesis)