[gentoo-dev] Re: [PATCH python-utils-r1] Move python_fix_shebang to python-utils-r1 and rewrite it clean.

[Mike Gilbert]

On Tue, May 20, 2014 at 2:19 PM, Michał Górny <mgorny@g.o> wrote:
> It serves both as public shebang fixing function and replacement of
> _python_rewrite_shebang internal function. For the sake of having common
> code and consistent behavior.
>
> Notes on the 'new' function:
>
> 1. takes a list of files and/or directories to fix. Directories are
> processed recursively,
>
> 2. files, depending on the shebang:
>
> a) with shebang matching $EPYTHON (e.g. already having pythonX.Y) are
> skipped silently (but see 3),
>
> b) with shebang 'compatible' with $EPYTHON (e.g. python3 -> python3.2,
> but not python2 -> python3.2) are mangled verbosely,
>
> c) with shebang 'incompatible' with $EPYTHON (e.g. python3 -> python2.7,
> python3.2 -> python3.3) raise a fatal error,
>

This fatal behavior is a little annoying. I seem to recall people
asking if there is a way to just force it, no matter if the shebang is
'compatible' or not.

Unfortunately, I do not have example handy, but I know I have been
asked the question.