Python Program - Identity Operators

• #!/usr/bin/python
  
  a = 20
  b = 20
  
  if ( a is b ):
     print "Line 1 - a and b have same identity"
  else:
     print "Line 1 - a and b do not have same identity"
  
  if ( id(a) == id(b) ):
     print "Line 2 - a and b have same identity"
  else:
     print "Line 2 - a and b do not have same identity"
  
  b = 30
  if ( a is b ):
     print "Line 3 - a and b have same identity"
  else:
     print "Line 3 - a and b do not have same identity"
  
  if ( a is not b ):
     print "Line 4 - a and b do not have same identity"
  else:
     print "Line 4 - a and b have same identity"

• Output

  Line 1 - a and b have same identity
  Line 2 - a and b have same identity
  Line 3 - a and b do not have same identity
  Line 4 - a and b do not have same identity