recursive methods require implementing a stack?

[Carl Meyer]

On 04/06/2016 03:08 PM, Random832 wrote:
> On Wed, Apr 6, 2016, at 16:21, Charles T. Smith wrote:
>> I just tried to write a recursive method in python - am I right that
>> local
>> variables are only lexically local scoped, so sub-instances have the same
>> ones?  Is there a way out of that?  Do I have to push and pop my own
>> simulated
>> stack frame entry? 
> 
> No, and I'm not sure why you would think that.

Sounds like a confusion that might arise due to using a mutable default
arg? Or generally passing a mutable arg and not understanding Python's
calling semantics?

Carl

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