Retrieving the full command line

Terry Reedy tjreedy at udel.edu
Tue Jan 22 15:53:37 CET 2013


On 1/22/2013 4:24 AM, Tim Golden wrote:
> [Python 2.7/3.3 (and hg tip) running on Windows. Not Windows-specific,
> though].
>
> I use the python -mpackage incantation to run a package which has a
> __main__.py module and which uses relative imports internally.
>
> I'm developing under cherrypy which includes a reloader for development.
> The reloader attempts to rebuild the original
> command line by combining sys.executable and sys.argv and then does an
> execv.
>
> There does not appear to be any way within Python of determining the
> command line I used. The combination of sys.executable and sys.argv in
> this case will look like: "c:\python33\python.exe app/__main__.py". But
> running this precludes the use of package-relative imports.

If I understand right, the reloader should be updated to translate 
'x/__main__.py' to '-m x'. Filenames of form'__x__' are reserved, in a 
sense, like similar identifiers in programs, and '__main__.py' should 
not be used for a file meant to executed directly.

-- 
Terry Jan Reedy




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