copy constructor python code example
Example 1: example of a deep copy in python
import copy
old_list = [[1, 1, 1], [2, 2, 2], [3, 3, 3]]
new_list = copy.deepcopy(old_list)
old_list[1][0] = 'BB'
print("Old list:", old_list)
print("New list:", new_list)
Old list: [[1, 1, 1], ['BB', 2, 2], [3, 3, 3]]
New list: [[1, 1, 1], [2, 2, 2], [3, 3, 3]]
Example 2: copy constructor python
class Foo:
def __init__(self, orig=None):
if orig is None:
self.non_copy_constructor()
else:
self.copy_constructor(orig)
def non_copy_constructor(self):
def copy_constructor(self, orig):
a=Foo()
b=Foo(a)