def calc_pi(self, n): #3
return plain_pi.pi_plain(n)
import plain_pi
if __name__ == '__main__':
print (plain_pi.pi_plain(1000000))
def calc_pi(self, n): #3
return plain_pi.pi_plain(n)
import plain_pi
if __name__ == '__main__':
print (plain_pi.pi_plain(1000000))