[Distutils] desirability of multiple, divergent Python instances

[Stephen Waterbury]

Ben Finney wrote:
> Stephen Waterbury <waterbug at pangalactic.us> writes:
> 
>> "system Python" -- the Python (and its site-pkgs, etc.) that any
>> Python scripts used by the OS depend on, which would of course be
>> solely determined by the OS.
>>
>> This would be distinct, in my proposal, from any packages named
>> "python" or "python.x" in the package namespace of the system
>> package manager (e.g. apt).
> 
> It seems clear to me that divergence between these two should be kept
> to a minimum ...

Why?

Steve