mod_wsgi messing Python from fink with system python on Mac Osx 10.5.6

[Alan]

Hi,

I followed this issue (http://groups.google.com/group/modwsgi/
browse_thread/thread/d5fb59eb82e59bd3/33bb41fb5c3517b1?
lnk=gst&q=fink#33bb41fb5c3517b1) but it didn't help me much.

I use Fink. I dowloaded modwsgi 2.3 and all seemed to be installed OK.

mod_wsgi-2.3% ./configure
checking for apxs2... no
checking for apxs... /usr/sbin/apxs
checking Apache version... 2.2.9
checking for python... /sw/bin/python
configure: creating ./config.status
config.status: creating Makefile

make
/usr/sbin/apxs -c -I/sw/include/python2.5 -DNDEBUG -Wc,'-arch i386'
mod_wsgi.c -arch i386 -L/sw/lib/python2.5/config -lpython2.5 -ldl
/usr/share/apr-1/build-1/libtool --silent --mode=compile gcc -
DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -no-cpp-precomp -I/usr/include/
apache2 -I/usr/include/apr-1 -I/usr/include/apr-1 -arch i386 -I/sw/
include/python2.5 -DNDEBUG -c -o mod_wsgi.lo mod_wsgi.c && touch
mod_wsgi.slo
/usr/share/apr-1/build-1/libtool --silent --mode=link gcc -o
mod_wsgi.la -rpath /usr/libexec/apache2 -module -avoid-version
mod_wsgi.lo -arch i386 -L/sw/lib/python2.5/config -lpython2.5 -ldl

I developed a project with django and now I am trying to test it with
apache2 + mod_wsgi in my Mac.

Starting apache I have:
[Sun Jan 11 18:44:50 2009] [warn] Init: Session Cache is not
configured [hint: SSLSessionCache]
[Sun Jan 11 18:44:50 2009] [notice] Digest: generating secret for
digest authentication ...
[Sun Jan 11 18:44:50 2009] [notice] Digest: done
[Sun Jan 11 18:44:50 2009] [notice] Apache/2.2.9 (Unix) mod_ssl/2.2.9
OpenSSL/0.9.7l DAV/2 mod_wsgi/2.3 Python/2.5.2 configured -- resuming
normal operations

Python 2.5.2 is my Fink python (system python is 2.5.1). All sounded
fine so far.

However, when starting to test my django project, after many try and
error I found out that the sys.path inside mod_wsgi was:

sys.path: ['/usr/lib/python25.zip', '/usr/lib/python2.5', '/usr/lib/
python2.5/plat-darwin', '/usr/lib/python2.5/plat-mac', '/usr/lib/
python2.5/plat-mac/lib-scriptpackages', '/usr/lib/python2.5/lib-tk', '/
usr/lib/python2.5/lib-dynload', '/Library/Python/2.5/site-packages']

Clearly not related to fink python (/sw/bin/python, /sw/lib/
python2.5). Reading as much as I could about mod_wsgi I came out with
python-path option in my httpd.conf:

WSGIDaemonProcess webapps user=alan group=staff processes=1 threads=16
\
python-path=/sw/lib/python2.5:/sw/lib/python2.5/site-packages

It allowed me to finaly see my initial web page application but it
sounded a crappy solution, because my sys.path still has references to
the wrong python:

[['/usr/lib/python25.zip', '/usr/lib/python2.5', '/usr/lib/python2.5/
plat-darwin', '/usr/lib/python2.5/plat-mac', '/usr/lib/python2.5/plat-
mac/lib-scriptpackages', '/usr/lib/python2.5/lib-tk', '/usr/lib/
python2.5/lib-dynload', '/Library/Python/2.5/site-packages', '/sw/lib/
python2.5', '/sw/lib/python2.5/site-packages', '/sw/lib/python2.5/site-
packages/Numeric', '/sw/lib/python2.5/site-packages/PIL', '/sw/lib/
python2.5/site-packages/gtk-2.0', '/Users/alan/ccpnmr/ccpnmr2.0/
python', '/Users/alan/workspace']

And this "ghost" came to hunted me when I tried to use my web
application (where I submit a tgz file) and I got this error (from
django debug):

Environment:

Request Method: POST
Request URL: http://192.168.2.4/ccpngrid/
Django Version: 1.0.2 final
Python Version: 2.5.2
Installed Applications:
['django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'webapps.ccpngrid',
'webapps.acpypi',
'django.contrib.admin',
'django.contrib.markup']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware')


Traceback:
File "/sw/lib/python2.5/site-packages/django/core/handlers/base.py" in
get_response
86. response = callback(request, *callback_args,
**callback_kwargs)
File "/sw/lib/python2.5/site-packages/django/contrib/auth/
decorators.py" in __call__
67. return self.view_func(request, *args, **kwargs)
File "/Users/alan/workspace/webapps/../webapps/ccpngrid/views.py" in
upload
15. if form.is_valid():
File "/sw/lib/python2.5/site-packages/django/forms/forms.py" in
is_valid
120. return self.is_bound and not bool(self.errors)
File "/sw/lib/python2.5/site-packages/django/forms/forms.py" in
_get_errors
111. self.full_clean()
File "/sw/lib/python2.5/site-packages/django/forms/forms.py" in
full_clean
234. value = getattr(self, 'clean_%s' % name)()
File "/Users/alan/workspace/webapps/../webapps/ccpngrid/models.py" in
clean_file
48. tarfile.open(fileobj=file)
File "/usr/lib/python2.5/tarfile.py" in open
1139. return func(name, "r", fileobj)
File "/usr/lib/python2.5/tarfile.py" in gzopen
1204. gzip.GzipFile(name, mode, compresslevel,
fileobj))
File "/usr/lib/python2.5/tarfile.py" in taropen
1183. return cls(name, mode, fileobj)
File "/usr/lib/python2.5/tarfile.py" in __init__
1047. self.name = os.path.abspath(name)
File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/
python2.5/posixpath.py" in abspath
402. if not isabs(path):
File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/
python2.5/posixpath.py" in isabs
49. return s.startswith('/')

Exception Type: AttributeError at /ccpngrid/
Exception Value: 'NoneType' object has no attribute 'startswith'

If one follows this log one will note that at line 48 it changed from
one python lib (fink 2.5.2) to another (system 2.5.1) and try to use
system's tarfile module instead of fink's tarfile module and that's
why I have the error in the end.

By the way one of the reasons of using Fink Python instead of System
Python is that tarfile module in System Python is buggy.

Of course, I can try to reorder my sys.path list, but frankley,
although it may work it still does not sound a conclusive solution.

So bottom line, how in heavens can change and assure that when apache2
+ mod_wsgi starts they will use only and just only Fink's python with
its only and just only libs ?

Any help here would be more than appreciated.

Many thanks in advance.

Cheers,
Alan

[Graham Dumpleton]

See:

http://code.google.com/p/modwsgi/wiki/InstallationIssues#Multiple_Python_Versions
http://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGIPythonHome

Set:

WSGIPythonHome /sw

Graham

2009/1/12 Alan <alanw...@gmail.com>:

[Alan]

Thanks a lot dear Graham.

I indeed had read the 2nd link before but not with the due attention because I don't why I was looking at WSGIPythonPath.

Thank you very much.

Cheers,

Alan

--
Alan Wilter S. da Silva, D.Sc. - CCPN Research Associate
Department of Biochemistry, University of Cambridge.
80 Tennis Court Road, Cambridge CB2 1GA, UK.
>>http://www.bio.cam.ac.uk/~awd28<<