Gareth Rees <[email protected]> added the comment:
The behaviour of the * operator (and the associated gotcha) is documented under
"Common sequence operations" [1]:
Note that items in the sequence s are not copied; they are referenced
multiple times. This often haunts new Python programmers ...
There is also an entry in the FAQ [2]:
replicating a list with * doesn’t create copies, it only creates
references to the existing objects
[1]
https://docs.python.org/3/library/stdtypes.html#sequence-types-list-tuple-range
[2] https://docs.python.org/3/faq/programming.html#faq-multidimensional-list
----------
nosy: [email protected]
resolution: -> not a bug
stage: -> resolved
status: open -> closed
_______________________________________
Python tracker <[email protected]>
<https://bugs.python.org/issue32194>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
