"""Self modifying code that squares s."""
s = '2'


retain = ''
name = 'selfSquare.py'
t = file(name, 'r')
for line in t:
    if line != '\n' and line.split()[0] == 's':
        line = line.split()
        line[2] = "'" + str(int(line[2][1:-1]) ** 2) + "'"
        line = ' '.join(line) + '\n'
    retain += line
t.close()


t = file(name, 'w')
t.write(retain)
t.close()