[PyQt] TypeError related to dbus.mainloop when building PyQt

[Florian Bruhin]

* Phil Thompson <phil at riverbankcomputing.com> [2016-04-28 17:33:50 +0100]:
> On 27 Apr 2016, at 3:36 pm, Florian Bruhin <me at the-compiler.org> wrote:
> > 
> > When building the current snapshots of Qt/PyQt/sip I get this:
> > 
> > 	Checking to see if the dbus support module should be built...
> > 	pkg-config --cflags-only-I --libs dbus-1
> > 	An internal error occured.  Please report all the output from the program,
> > 	including the following traceback, to support at riverbankcomputing.com.
> > 	Traceback (most recent call last):
> > 	  File "configure.py", line 2896, in <module>
> > 		main(sys.argv)
> > 	  File "configure.py", line 2880, in main
> > 		check_dbus(target_config, opts.verbose)
> > 	  File "configure.py", line 2131, in check_dbus
> > 		target_config.pydbus_module_dir = dbus.mainloop.__path__[0]                                                                                                                                                                                                          TypeError: '_NamespacePath' object does not support indexing
> > 
> > And I can reproduce the same when using Python directly too:
> > 
> > 	[user at 54c8a06abe39 PyQt5_gpl-5.6.1.dev1604260930]$ python3
> > 	Python 3.5.1 (default, Mar  3 2016, 09:29:07) 
> > 	[GCC 5.3.0] on linux
> > 	Type "help", "copyright", "credits" or "license" for more information.
> > 	>>> import dbus.mainloop
> > 	>>> dbus.mainloop.__path__
> > 	_NamespacePath(['/usr/lib/python3.5/site-packages/dbus/mainloop'])
> > 	>>> dbus.mainloop.__path__[0]
> > 	Traceback (most recent call last):
> > 	  File "<stdin>", line 1, in <module>
> > 	TypeError: '_NamespacePath' object does not support indexing
> > 
> > What does work (though it's private attribute access...) is using
> > _path:
> > 
> > 	>>> dbus.mainloop.__path__._path
> > 	['/usr/lib/python3.5/site-packages/dbus/mainloop']
> > 	>>> dbus.mainloop.__path__._path[0]
> > 	'/usr/lib/python3.5/site-packages/dbus/mainloop'
> 
> Can you try changing...
> 
>     target_config.pydbus_module_dir = dbus.mainloop.__path__[0]
> 
> ...to...
> 
>     target_config.pydbus_module_dir = list(dbus.mainloop.__path__)[0]

I tried again today and suddenly dbus.mainloop.__path__ *is* a list
and not a _NamespacePath object...

I can't explain this. I'll let you know if I encounter it again :)

Florian

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