Scope troubles with a swap function

[Marcin 'Qrczak' Kowalczyk]

Fri, 10 Aug 2001 21:45:47 GMT, Joseph Andrew Knapka <jknapka at earthlink.net> pisze:

> Just pass arguments. All names in Python have values that are either
> basic types (eg Integer) or references to objects (lists, tuples,
> class instances).

All values are references to objects, including integers.

At least conceptually. An alternative implementation could treat them
specially (in fact the CPython implementation preallocates 101 of
them to not have to always create them dynamically). But it's safe
to assume that they are all heap-allocated objects.

Since integers are immutable, the overall effect is the same as if
they were passed by value.

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