Re: pip-related option -J-Dcpython_cmd

Hey Jeff,

indeed I intended at that time to get eventually back to this and find a
better solution
("Todo: Resolve this discrepancy!"). Then there were other priorities...
A prototype use case is to let things like this genereate some required
pyc-files smoothly:

pip install --global-option="-J-Dcpython_cmd=python" sympy

If that works with the Windows launcher now, it should be fine to
remove the special case.
I think I originally thought about solving this by making the options
parser smarter, e.g.
atomatically sort out -J options regardless where they occur. That
would move some logic
from platform dependent launchers into the platform independent Java
code -> easier to maintain.

Anyway. If it works fine now with the launchers I think there is no
priority to move things around now.

-Stefan


Am Mi., 29. Aug. 2018 um 00:58 Uhr schrieb Jeff Allen <[email protected]>:

> HI Stefan:
>
> I'm rationalising the Jython main program and the options parser, and I'm
> looking at the code added by this change:
>
> https://hg.python.org/jython/rev/03f4808038f8#l3.8
>
> which is clearly a work-around you seemed to intend be resolved another
> way eventually. It deals as a specific case with the option
> -J-Dcpython_cmd=python, which ends up as a Jython argument when using pip
> with --global-options. (That's if I've understood correctly.) Am I right
> in thinking this is a specific case of a general problem when Java options
> mix with Python ones (observed here in 2.7.1):
>
> PS startup2> jython -E -J-Dtest=TEST
> Unknown option: J-Dtest=TEST
> usage: ...
>
> Since that time, and with an unconnected motive, I've changed the Windows
> launcher so that it shuffles recognisable Python options and Java options
> (-J<stuff>) to their proper places. (
> https://hg.python.org/jython/rev/b556dcdf8258) In the tip now, I get:
>
> PS jython-trunk> dist\bin\jython -E -J-Dtest=TEST -c "import sys; print sys.registry.getProperty('test')"
> TEST
>
> Do you think this means I can I safely omit the special case from the
> options parser?
>
> Jeff
>
> --
> Jeff Allen
>
>
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