"""
lecture 5
"""
#a = [1,2,3]
#b = [1,2,3]

#print(a == b)
#print(a is b)

#print(id(a))
#print(id(b))

#x = None
#print(id(None))
#print(id(x))
#print(x is None)
#print(x == None)

#y = []
#x = None

#print(type(y))
#print(y == None)
#print(y is None)
#print(x is None)

#print(True and False )
#print (True or False)
#print(not True)
#print(not None)
#print(not '0') #when paranthesis are used, it is a string
#print(not 0) #when there are no parenthesis used, it is an integer
#print(() and [])

#if 2>1 :
  #  if 1.5>1:
   #     print('1.5>1')
   #     print('2>1')
   
#if 2<=1:
   # print('2<=1')
#else: 
   # print('2>1')