Reportlab can't find _imaging module using production server
PIL should be installed before library which uses it. I got similar problem with libimaging - PIL wasn't installed before libimaging so libimaging was compiled without it. Solution was uninstall libimaging and install it again with PIL already present in system.
I'm trying to push a django app to the production server, but for some reason it fails and says:

ImportError: The _imaging C module is not installed

The weird part is that when I use the development server on the same machine, it works just fine.  PIL is installed, and I can import the _imaging module by hand in the shell.  The production server uses Apache.  Any ideas?

Traceback (most recent call last):
File "C:\Python27\lib\site-packages\django\core\handlers\base.py", line 111, in get_response
      response = callback(request, *callback_args, **callback_kwargs)
File "C:/portal2\compliance\views.py", line 91, in show_statement
      doc.build(Story, onFirstPage=firstPage, onLaterPages=otherPage)
File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 1117, in build
      BaseDocTemplate.build(self,flowables, canvasmaker=canvasmaker)
File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 877, in build
      self.clean_hanging()
File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 510, in clean_hanging
      self.handle_flowable(self._hanging)
File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 757, in handle_flowable
      f.apply(self)
File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 140, in apply
      getattr(doc,arn)(*args)
File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 1093, in handle_pageBegin
      self._handle_pageBegin()
File "C:\Python27\lib\site-packages\reportlab\platypus\doctemplate.py", line 535, in handle_pageBegin
      self.pageTemplate.onPage(self.canv,self)
File "C:/portal2\compliance\views.py", line 55, in firstPage
      canvas.drawImage(img,0,0,8.5*inch,11*inch)
File "C:\Python27\lib\site-packages\reportlab\pdfgen\canvas.py", line 857, in drawImage
      imgObj = pdfdoc.PDFImageXObject(name, image, mask=mask)
File "C:\Python27\lib\site-packages\reportlab\pdfbase\pdfdoc.py", line 2094, in init
      self.loadImageFromA85(src)
File "C:\Python27\lib\site-packages\reportlab\pdfbase\pdfdoc.py", line 2100, in loadImageFromA85
      imagedata = map(string.strip,pdfutils.makeA85Image(source,IMG=IMG))
File "C:\Python27\lib\site-packages\reportlab\pdfbase\pdfutils.py", line 34, in makeA85Image
      raw = img.getRGBData()
File "C:\Python27\lib\site-packages\reportlab\lib\utils.py", line 658, in getRGBData
      annotateException('\nidentity=%s'%self.identity())
File "C:\Python27\lib\site-packages\reportlab\lib\utils.py", line 655, in getRGBData
      self._data = im.tostring()
File "C:\Python27\lib\site-packages\PIL\Image.py", line 532, in tostring
      self.load()
File "C:\Python27\lib\site-packages\PIL\ImageFile.py", line 164, in load
      self.load_prepare()
File "C:\Python27\lib\site-packages\PIL\ImageFile.py", line 231, in load_prepare
      self.im = Image.core.new(self.mode, self.size)
File "C:\Python27\lib\site-packages\PIL\Image.py", line 37, in getattr
      raise ImportError("The _imaging C module is not installed")
ImportError: The _imaging C module is not installed
  identity=[ImageReader@0x4517a30 filename='C:\portal2\pdf\Certification_fullframe.tif']
     handle_pageBegin args=()