[Pythonmac-SIG] [Numpy-discussion] Packaging numpy with py2app
josh.p.marshall at gmail.com
Wed Jul 19 02:32:06 CEST 2006
Thanks for the info on how the various recipes work, Bob. Very helpful.
On 19/07/2006, at 9:28 AM, Bob Ippolito wrote:
> The recipe mechanism doesn't allow for it because it doesn't
> generally make sense. There are very few packages that can find
> their resources in an alternative manner. I'm not totally opposed
> to adding another feature to support that use case, but throwing it
> directly in the resources dir seems like a bad idea to do
> automatically from a recipe. The files should sit under some kind
> of matplotlib hierarchy. It would be nicer to see matplotlib just
> figure out how to make their app work from a zip... pygame does,
> and it has fonts and icons.
I think matplotlib can access files inside the zip, since it searches
inside the following directories upon startup and is frozen-aware.
So I have been attempting to put the data files in the zip.
> loader_files puts data files *in the zip*
Indeed it does. When I use the following recipe: (noting that the
recipe's filename can't be "matplotlib.py", I've been using
def check(cmd, mf):
m = mf.findNode('matplotlib')
if m is None or m.filename is None:
import matplotlib, glob, os
mpl_datapath = matplotlib.get_data_path()
mpl_datafilelist = glob.glob(mpl_datapath + r'/*')
# only include individual files from the mpl-data directory
# this should exclude directories, which should only be
mpl_datafilelist = [mpl_file for mpl_file in mpl_datafilelist
mf.import_hook('pytz.zoneinfo', m, ['UTC'])
mf.import_hook('matplotlib.numerix', m, ['random_array'])
loader_files = [
The data files then get put in the matplotlib directory in the zip.
However, matplotlib searches in the mpl-data directory *inside* the
matplotlib directory, as shown in the search paths above.
I have not been able to find a way to include a directory within the
matplotlib directory. If I use
loader_files = [
py2app barfs when trying to copy the files since the directory
doesn't exist. Any ideas Bob?
Chris, can you please copy my email when replying to the thread? I'm
getting the digest, so I don't get your messages for quite some time
Christopher Barker wrote:
> I wonder what the plan should be for recipes for MPL and the like.
> As Bob mentioned, perhaps it's best for the developer to find a way
> to manually include what they want, as there is a LOT of stuff in
> MPL (and certainly SciPy!) and much of will not be used by a given
If we can get numpy and scipy to work without a recipe that just
includes the packages we can definitely do this. The problem here is
not with py2app, but rather with numpy/scipy themselves and their
crazy custom importer which doesn't work with a zipped site-packages.
I am close to getting matplotlib working with a decent non-naive
recipe. This means it'll only include what is being used by the
> It seems the only way to make a recipe that is useful would be for
> it to include EVERYTHING. That may not be a bad default, but there
> should certainly be a way to turn it off if need be.
No, a useful and "proper" recipe just adds the files that are not
referenced directly through imports, ie., data files. This is what I
am doing with matplotlib.
> Also, I got a numpy app to work yesterday by using:
The recipe I sent out in the zip yesterday did exactly that. Bob has
added it to py2app trunk. There is a similar recipe for scipy and
matplotlib as well. These will do until we get proper ones working.
The packages option does include *everything*, by doing a full copy
of the package. This means that source, documentation, example files,
etc gets included along with the bytecode files.
> That then includes the entire numpy package. That works, but it
> puts in a lot of stuff I don't need (dft, linear_algebra, etc).
> Maybe the recipe should include only the core stuff, and let the
> user add the extra packages, if need be.
AFAICT, this can't really be done. From looking at the numpy
structure, there are subpackages
'testing','core','lib','linalg','dft','random','f2py', which are all
loaded in the numpy __init__.py via the following:
pkgload = PackageLoader()
The doc string for PackageLoader.__call__() says:
> This function is intended to shorten the need to import many of
> subpackages, say of scipy, constantly with statements such as
> import scipy.linalg, scipy.fftpack, scipy.etc...
> Instead, you can say:
> import scipy
so it seems like the entire purpose of PackageLoader is to make life
difficult for me, just to save a few lines of typing. :) Seriously,
can a numpy developer tell me why PackageLoader is necessary?
> Or should numpy be fixed so that it doesn't do weird imports?
The weird imports are okay, but they need to be able to work from a
site-packages.zip. That's the next job. Hopefully I'll get time to
look at it before numpy goes too far into beta. Scipy is a long way off.
More information about the Pythonmac-SIG