Hmm... And then we will get complaints because Python creates lots of
files in /usr/tmp and doesn't clean them up. But if someone
contributes a working implementation (hint: it's all in
Python/import.c) I would consider incorporating it.
> This brings up another interesting point: are the .pyc files guarded against
> concurrent generation?
Yes. The timestamp and magic number are written last, in one write
> If you really want this, I would see it more as a debugging aid for the
> programmer/sysadmin and disable it by default and enable it by, say, a
> variable in sys or a command line option. :-)
Our reasoning was that you can already get these messages with python
-v, but that in this particular case one would like to receive a
gentle warning that there might be a (startup) efficiency problem.
>From the first few responses it seems that maybe we underestimated the
impact of warnings...
--Guido van Rossum, CWI, Amsterdam <Guido.van.Rossum@cwi.nl>