Hi, Ronald
Thanks for your suggestion. Your solution works great when I install the
additional packages from outside my application. But as we want to make our
users' life easier, we would like to install the additional packages into
the user's provided folder from our bundle.
As I was trying to implement this, I came across another problem that maybe
you know a solution for it. If I try to run the system's easy_install it
doesn't work. The error message was not very helpful but I think it's
because I can't create a child process running a different interpreter. I
am using subprocess.Popen() to start the process:
{{{
Traceback (most recent call last):
File "/usr/bin/easy_install-2.7", line 7, in <module>
from pkg_resources import load_entry_point
File "pkg_resources.pyc", line 698, in <module>
File "pkg_resources.pyc", line 701, in Environment
File "pkg_resources.pyc", line 99, in get_supported_platform
File "pkg_resources.pyc", line 209, in _macosx_vers
File "platform.pyc", line 804, in mac_ver
File "platform.pyc", line 781, in _mac_ver_xml
File "plistlib.pyc", line 78, in readPlist
File "plistlib.pyc", line 401, in parse
File "xml/parsers/expat.pyc", line 4, in <module>
ImportError:
dlopen(/Applications/MyApp.app/Contents/Resources/lib/python2.7/lib-dynload/pyexpat.so,
2): Symbol not found: __Py_HashSecret
Referenced from:
/Applications/MyApp.app/Contents/Resources/lib/python2.7/lib-dynload/pyexpat.so
Expected in: flat namespace
in
/Applications/MyApp.app/Contents/Resources/lib/python2.7/lib-dynload/pyexpat.so
}}}
If I try to include setuptools in the bundle so I can run easy_install with
the same interpreter, I get errors with missing variables in site.py. But
after adding those variables just to see how far I would go, I get this
error:
{{{
Traceback (most recent call last):
File
"/Applications/MyApp.app/Contents/Resources/lib/python2.7/gui/bundles/easy_install.py",
line 10, in <module>
from setuptools.command.easy_install import main
File
"/Applications/MyApp.app/Contents/Resources/lib/python2.7/setuptools/command/easy_install.py",
line 21, in <module>
from setuptools.package_index import PackageIndex, parse_bdist_wininst
File
"/Applications/VisTrails/VisTrails.app/Contents/Resources/lib/python2.7/setuptools/package_index.py",
line 145, in <module>
urllib2.__version__, require('setuptools')[0].version
File "pkg_resources.pyc", line 666, in require
File "pkg_resources.pyc", line 565, in resolve
pkg_resources.DistributionNotFound: setuptools
}}}
Any ideas how I solve this?
Thanks,
-- Emanuele.
On Wed, Oct 17, 2012 at 11:45 AM, Ronald Oussoren <ronaldousso...@mac.com>wrote:
>
> On 17 Oct, 2012, at 16:12, Emanuele Santos <emanuelesan...@gmail.com>
> wrote:
>
> > Hi, all
> >
> > We build a bundle with py2app and we would like to make it extensible so
> users could install on demand other python packages into the python
> framework included in the bundle, for example by running easy_install.
> >
> > Is there a recommended way of doing that? I noticed that the site.py
> file included in the bundle is not complete so when I tried using the
> --user command line option or setting the $PYTHONHOME, I got an error.
>
> I wouldn't change the application bundle itself, but would add an option
> to load python code from a user specified location. There are two reasons
> for not changing the application bundle itself: that would invalidate code
> signatures, and users cannot necessarily write into the bundle (I tend to
> install applications using a separate account with more privileges than my
> normal account).
>
> One way to do this is adding something like this to your application's
> startup code:
>
> import os
> import site
>
> site.addsitedir(os.path.expanduser("~/Library/Application
> Support/MyApp/Python"))
>
> Users can then install additional modules in "~/Library/Application
> Support/MyApp/Python" and your application can then use them.
>
> If you're using a semi-standalone build (for example because you use
> Apple's python build) you can also use the "--site-packages" option to add
> the default site-packages directory to your application's search path.
> However, when I look at the code that not only just works for
> semi-standalone builds, but I'm also also not sure if the code that adds
> ~/Library/Python/... to sys.path actually works.
>
> Ronald
> >
> > Thanks,
> >
> > -- Emanuele.
> >
> > _______________________________________________
> > Pythonmac-SIG maillist - Pythonmac-SIG@python.org
> > http://mail.python.org/mailman/listinfo/pythonmac-sig
> > unsubscribe: http://mail.python.org/mailman/options/Pythonmac-SIG
>
>
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