[Numpy-discussion] Getting rid of annoying weave nag

David M. Cooke cookedm at physics.mcmaster.ca
Fri Jun 9 17:45:28 EDT 2006

On Fri, 9 Jun 2006 15:19:14 -0600
"Fernando Perez" <fperez.net at gmail.com> wrote:

> On 6/9/06, David M. Cooke <cookedm at physics.mcmaster.ca> wrote:
> > On Thu, Jun 08, 2006 at 11:28:04PM -0600, Fernando Perez wrote:
> > > Anyone object to this patch against current numpy SVN to get rid of
> > > this thing? (tracking where the hell that thing was coming from was
> > > all kinds of fun)
> >
> > Go ahead.
> >
> > I'm against random messages being printed out anyways -- I'd get
> > rid of the '<weave: compiling>' too. There's a bunch of code in scipy
> > with 'print' statements that I don't think belong in a library. (Now,
> > if we defined a logging framework, that'd be ok with me!)
> Before I commit anything, let's decide on that one.  Weave used to
> print 'None' whenever it compiled anything, I changed it a while ago
> to the current 'weave:compiling'.  I'm also of the opinion that
> libraries should operate quietly, but with weave I've always wanted
> that message in there.  The reason is that when weave compiles (esp.
> with blitz in the picture), the execution takes a long time.  The same
> function goes from miliseconds to 30 seconds of run time depending on
> whether compilation is happening or not.
> This difference is so dramatic that I think a message is justified
> (absent a proper logging framework).  It's helpful to know that the
> time is going into c++ compilation, and not your code hanging for 30
> seconds.

Ok, I'll give you that one :-) It's the other 1000 uses of print that I'm
concerned about.

inline_tools.compile_function takes a verbose flag, though, which eventually
gets passed to build_tools.build_extension (which I believe does all the
compiling for weave). It's probably more reasonable to have
inline_tools.compile_function default to verbose=1 instead of 0, then
build_extension will print 'Compiling code...' (that should be changed to
mention weave).

|David M. Cooke                      http://arbutus.physics.mcmaster.ca/dmc/
|cookedm at physics.mcmaster.ca

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