On 7 March 2011 00:22, Patricia Sousa <[email protected]> wrote: > Hi, > > I installed mod_wsgi module in my virtual machine and it works fine, I > received a "Hello world!" message from myapp.wsgi script. > > Now I want to import some modules in the wsgi script and one of them > is the lxml module. The goal of my project is to return one XML file > as a result. It is only when I import the lxml module that mod_wsgi > crashed. > > I did some research on the Internet and introduced the line > "WSGIApplicationGroup %{GLOBAL}" in the httpd.conf file, but that > didn't solve the problem. The error log has the following: > > > [Sun Mar 06 12:28:00 2011] [error] [client 10.249.0.102] mod_wsgi > (pid=12529): Target WSGI script '/var/www/html/wsgi-scripts/ > myapp.wsgi' cannot be loaded as Python module. > [Sun Mar 06 12:28:00 2011] [error] [client 10.249.0.102] mod_wsgi > (pid=12529): Exception occurred processing WSGI script '/var/www/html/ > wsgi-scripts/myapp.wsgi'. > [Sun Mar 06 12:28:00 2011] [error] Traceback (most recent call last): > [Sun Mar 06 12:28:00 2011] [error] File "/var/www/html/wsgi-scripts/ > myapp.wsgi", line 8, in <module> > [Sun Mar 06 12:28:00 2011] [error] import lixo > [Sun Mar 06 12:28:00 2011] [error] File "/var/www/html/wsgi-scripts/ > lixo.py", line 2, in <module> > [Sun Mar 06 12:28:00 2011] [error] from xml.etree.ElementTree > import Element, SubElement, tostring, XML > [Sun Mar 06 12:28:00 2011] [error] ImportError: No module named > xml.etree.ElementTree > > As I thought that the problem was in python not knowing the location > of lxml, I added the following code to my myapp.wsgi file: > > > sys.path.insert(0, '/var/www/html/wsgi-scripts') # where I have the > python and wsgi files > sys.path.insert(1, '/usr/lib/python2.6/site-packages/') # Where the > python files are
You should need to do the latter. > However, I still get the same error in the log... > I'm going crazy with this error. Does anyone know what to do to make > mod_wsgi work with lxml? > > Thank you, > > Best regards, > Patrícia Sousa > > > PS: Some relevant files follows > > httpd.conf: > > > LoadModule wsgi_module modules/mod_wsgi.so > AddHandler wsgi-script .wsgi .py > WSGIPythonHome /usr/bin/python2.6 Again, you should not need to set WSGIPythonHome and that value for it is wrong anyway. It is not meant to be the path to the executable. Also be aware that you cannot use WSGIPythonHome to force mod_wsgi to use a different Python version than what it was compiled against. Now, as: http://docs.python.org/library/xml.etree.elementtree.html says that 'xml.etree.ElementTree' was only added in Python 2.5, am wondering if your mod_wsgi is actually compiled against and using Python 2.4. Do the checks in sections starting at: http://code.google.com/p/modwsgi/wiki/CheckingYourInstallation#Python_Shared_Library and validate what version of Python the mod_wsgi package is compiled against and then using at run time. You may have to de install mod_wsgi compiled for Python 2.4 and reinstall that for Python 2.6. Graham > WSGIApplicationGroup %{GLOBAL} > > <Directory /var/www/html/wsgi-scripts> > Options Indexes FollowSymLinks MultiViews > Options +ExecCGI > AllowOverride None > Order allow,deny > allow from all > </Directory> > > > myapp.wsgi: > > #!/usr/bin/python2.6 > > import sys > > sys.path.insert(0, '/var/www/html/wsgi-scripts') > sys.path.insert(1, '/usr/lib/python2.6/site-packages/') > > import lixo # o ficheiro está na pasta /var/www/html/wsgi-scripts > > def application(environ, start_response): > status = '200 OK' > output = 'Hello World!' > > response_headers = [('Content-type', 'text/plain'), > ('Content-Length', str(len(output)))] > start_response(status, response_headers) > > print >> sys.stderr, 'sys.prefix = %s' % repr(sys.prefix) > print >> sys.stderr, 'sys.path = %s' % repr(sys.path) > > return [output] > > > lixo.py: > > #!/usr/bin/python2.6 > > # Even if i comment this next line the error appears on the second > import > from xml.etree.ElementTree import Element, SubElement, tostring, XML > from lxml import etree > > xml2 = '<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/"; > xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/ > oai_dc/"><dc:identifier>foo:11</dc:identifier><dc:subject>fcrepo</ > dc:subject><dc:subject>unittest</dc:subject><dc:description>bla</ > dc:description><dc:description>A test object from the fcrepo unittest</ > dc:description><dc:title>My First Test Object</dc:title></oai_dc:dc>' > > def createHeaderXML(): > NS = 'http://www.w3.org/2001/XMLSchema-instance' > TREE = '{%s}' % NS > NSMAP = {None: NS} > location_attribute = '{%s}schemaLocation' % NS > root = etree.Element('OAI-PMH', attrib={location_attribute: 'http:// > www.openarchives.org/OAI/2.0/OAI-PMHhttp://www.openarchives.org/OAI/2.0/OAI-PMH.xsd'}) > > return root > > def createNoResultXML(): > root = etree.Element('results') > result = etree.SubElement(root, "result") > result.text = "Without results" > return root > > cabe = createNoResultXML() > print etree.tostring(cabe, pretty_print=True) > > -- > You received this message because you are subscribed to the Google Groups > "modwsgi" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/modwsgi?hl=en. > > -- You received this message because you are subscribed to the Google Groups "modwsgi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/modwsgi?hl=en.
