Programme chap2_type_1587_.py

# coding: latin-1
class A : pass

k = A ()
d = { }
d [k] = 0
print d                   # affiche {<__main__.A object at 0x0120DB90>: 0}
print id (k), hex(id(k))  # affiche 18930576, 0x120db90
print d [id(k)]           # provoque une erreur