[Python-Dev] Draft PEP and reference implementation of a Python launcher for Windows

Nick Coghlan ncoghlan at gmail.com
Sun Mar 20 00:23:21 CET 2011

On Sun, Mar 20, 2011 at 9:04 AM, "Martin v. Löwis" <martin at v.loewis.de> wrote:
> Am 19.03.2011 23:51, schrieb Nick Coghlan:
>> On Sun, Mar 20, 2011 at 4:49 AM, "Martin v. Löwis" <martin at v.loewis.de> wrote:
>>> I, for example, will find issues with it if the implementation uses
>>> CreateProcess at some point - the launcher should IMO run Python
>>> directly, rather than creating a new process. This, in turn, will
>>> probably mean that you cannot actually implement the PEP in Python.
>> runpy performs basically that dance to implement
>> _run_module_as_main(), so it's definitely possible.
> Does it also support loading a different interpreter version than the
> one it is running?

Ouch, no. I guess you're right, any Python based solution will need to
create a child process.


Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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