Hi all,
I'm on OS X and I installed pyxpcom by compiling Moz 1.9 from source.  
I'm close to getting it working, but I think something is missing from  
my environment.

In python I can import xpcom and xpcom._xpcom successfully, but trying  
to import something like xpcom.components fails with  
NS_ERROR_NO_INTERFACE when trying to find nsIObserver.

I can see ~/mozilla/dist/idl/nsIObserver.idl exists but I don't know  
what I have to do to get pyxpcom to find that (if that's even the  
problem). Any suggestions on how to resolve this would be appreciated.  
Thanks. My Python session follows.

Python 2.5.1 (r251:54863, Nov 17 2007, 21:19:53)
[GCC 4.0.1 (Apple Computer, Inc. build 5367)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
 > >> import xpcom
 > >> import xpcom._xpcom
###!!! ASSERTION: Failed to write xpti manifest!: 'Error', file  
xptiInterfaceInfoManager.cpp, line 1946
###!!! ASSERTION: Failed to write xpti manifest!: 'Error', file  
xptiInterfaceInfoManager.cpp, line 1946
*** Registering components in: xpconnect
*** Registering components in: nsUCvMathModule
*** Registering components in: nsUConvModule
*** Registering components in: nsI18nModule
*** Registering components in: nsChardetModule
*** Registering components in: nsUniversalCharDetModule
*** Registering components in: necko
*** Registering components in: nsCookieModule
*** Registering components in: nsPermissionsModule
*** Registering components in: nsAuthModule
*** Registering components in: nsJarModule
*** Registering components in: ZipWriterModule
*** Registering components in: nsPrefModule
*** Registering components in: nsSecurityManagerModule
*** Registering components in: nsRDFModule
*** Registering components in: nsXPIntlModule
*** Registering components in: nsWindowDataSourceModule
*** Registering components in: nsParserModule
*** Registering components in: nsGfxModule
*** Registering components in: nsWidgetMacModule
*** Registering components in: nsImageLib2Module
*** Registering components in: nsIconDecoderModule
*** Registering components in: nsPluginModule
*** Registering components in: nsLayoutModule
*** Registering components in: docshell_provider
*** Registering components in: embedcomponents
*** Registering components in: Browser_Embedding_Module
*** Registering components in: nsCJVMManagerModule
*** Registering components in: appshell
*** Registering components in: nsTransactionManagerModule
*** Registering components in: nsComposerModule
*** Registering components in: nsChromeModule
*** Registering components in: application
*** Registering components in: nsFindComponent
*** Registering components in: Apprunner
*** Registering components in: CommandLineModule
*** Registering components in: mozStorageModule
*** Registering components in: nsPlacesModule
*** Registering components in: tkAutoCompleteModule
*** Registering components in: satchel
*** Registering components in: PKI
*** Registering components in: nsToolkitCompsModule
*** Registering components in: nsSoftwareUpdate
*** Registering components in: JavaScript_Debugger
*** Registering components in: BOOT
*** Registering components in: NSS
*** Registering components in: nsAutoConfigModule
*** Registering components in: mozSpellCheckerModule
WARNING: Couldn't register mComponentsDir: file  
nsComponentManager.cpp, line 3276
The Python XPCOM loader is adding '/Library/Frameworks/ 
Python.framework/Versions/2.5/Resources/Python.app/Contents/MacOS/ 
python' to sys.path
 > >> import xpcom.components
Traceback (most recent call last):
   File "<stdin> ", line 1, in <module>
   File "/Users/me/mozilla/dist/bin/python/xpcom/components.py", line  
231, in <module> 
     import shutdown
   File "/Users/me/mozilla/dist/bin/python/xpcom/shutdown.py", line  
51, in <module> 
     class _ShutdownObserver:
   File "/Users/me/mozilla/dist/bin/python/xpcom/shutdown.py", line  
52, in _ShutdownObserver
     _com_interfaces_ = interfaces.nsIObserver
   File "/Users/me/mozilla/dist/bin/python/xpcom/components.py", line  
103, in __getattr__
     return self._get_one(attr)
   File "/Users/me/mozilla/dist/bin/python/xpcom/components.py", line  
153, in _get_one
     raise xpcom.COMException(nsError.NS_ERROR_NO_INTERFACE, "The  
interface '%s' does not exist" % (name,))
xpcom.Exception: -2147467262 (-2147467262)
 > >> import sys
 > >> sys.path.append('/Users/me/mozilla/dist/bin/python/xpcom')
 > >> import xpcom.components
Traceback (most recent call last):
   File "<stdin> ", line 1, in <module>
   File "/Users/me/mozilla/dist/bin/python/xpcom/components.py", line  
231, in <module> 
     import shutdown
   File "/Users/me/mozilla/dist/bin/python/xpcom/shutdown.py", line  
51, in <module> 
     class _ShutdownObserver:
   File "/Users/me/mozilla/dist/bin/python/xpcom/shutdown.py", line  
52, in _ShutdownObserver
     _com_interfaces_ = interfaces.nsIObserver
   File "/Users/me/mozilla/dist/bin/python/xpcom/components.py", line  
103, in __getattr__
     return self._get_one(attr)
   File "/Users/me/mozilla/dist/bin/python/xpcom/components.py", line  
153, in _get_one
     raise xpcom.COMException(nsError.NS_ERROR_NO_INTERFACE, "The  
interface '%s' does not exist" % (name,))
xpcom.Exception: -2147467262 (-2147467262)
 > >>



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