python version 2.5 in module copy
we all know that copy have two method: copy() and deepcopy().
and the explain is
- A shallow copy constructs a new compound object and then (to the
extent possible) inserts *the same objects* into it that the
original contains.
- A deep copy constructs a new compound object and then, recursively,
inserts *copies* into it of the objects found in the original.
so i try a example:
import copy
class A:
i = 1
class B:
a = A()
b = B()
x=copy.copy(b)
y=copy.deepcopy(b)
print id(x.a), id(b.a)
print id(y.a), id(y.a)
the result:
14505264 14505264
14505264 14505264
So maybe i have a wrong understand to deep copy and shallow copy or
it is a bug ?
please help me!!
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