fork download
copy 
  1. import collections
  2. import copy
  3.  
  4. Foo = collections.namedtuple('Foo', ['x'])
  5.  
  6. x = Foo([])
  7. x.x.append(x)
  8.  
  9. y = copy.deepcopy(x)
  10. print(id(y), id(y.x[0]), y is y.x[0])
Success #stdin #stdout 0.02s 27712KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
47891400377544 47891400377480 False
https://ideone.com/1RxgnM
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!