c2621566 added the comment:
Thanks for the feedback. The technical arguments convinced me not to spend more
time on this. I admit this patch is kind of an ugly hack. The effort needed for
a technically satisfactory solution seems too much for this unimportant feature.
--
resolution
New submission from c2621566:
This patch allows specifying import searchpaths as `-p path` arguments to the
interpreter, without touching environment variables.
Avoiding environment variables simplifies a script of mine and is a portable
way of swapping module implementation without touching