Farshid Lashkari wrote:
> When I pass an empty string to a function is a new string object created
> or does python use some global pre-created object? I know python does
> this with integer objects under a certain value. For instance, in the
> following code is a new string object created for each function call?
>
> func(0,'')
> func(1,'')
> func(2,'')
> func(3,'')
In this case, the language implementation may either create new
strings or re-use existing ones:
for immutable types, operations that compute new values
may actually return a reference to any existing object with
the same type and value, while for mutable objects this is
not allowed.
[http://docs.python.org/ref/objects.html]
[...]
> This leads me to believe that python does reuse existing strings, but
> once the variables are removed, does the item still exist in the cache?
Either; see the same reference page.
--
--Bryan
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