[issue8140] extend compileall to compile single files

[Ezio Melotti]

Changes by Ezio Melotti <ezio.melotti at gmail.com>:


----------
priority:  -> normal
stage:  -> patch review
type:  -> feature request

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue8140>
_______________________________________