[issue8023] bug in s.append(x)
Mark Dickinson
report at bugs.python.org
Fri Feb 26 12:13:37 CET 2010
Mark Dickinson <dickinsm at gmail.com> added the comment:
> So s.append(x) just copies the pointer, not the actual value.
Yes, that's a reasonable way to think about it (though the term 'reference' seems to more popular than 'pointer' in this context). It matches the implementation, too: internally, a list is represented as a resizable array of pointers to objects. (For CPython, anyway; alternative implementations of Python might differ.)
Implicit object copies are rare in Python.
comp.lang.python is a good place to ask questions about Python's object model.
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