subprocess.Popen called without universal_newlines=True opens stdin,
stout and stderr as binary stream which cause problems with Python 3.
Fixes:
Traceback (most recent call last):
File "/usr/lib64/python3.4/site-packages/sepolicy/gui.py", line 2773, in unconfined_toggle
self.dbus.semanage("module -e unconfined")
File "<string>", line 2, in semanage
File "/usr/lib/python3.4/site-packages/slip/dbus/polkit.py", line 121, in _enable_proxy
return func(*p, **k)
File "/usr/lib64/python3.4/site-packages/sepolicy/sedbus.py", line 14, in semanage
ret = self.dbus_object.semanage(buf, dbus_interface = "org.selinux")
File "/usr/lib64/python3.4/site-packages/dbus/proxies.py", line 145, in __call__
**keywords)
File "/usr/lib64/python3.4/site-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Python.TypeError: TypeError: 'dbus.String' does not support the buffer interface
Signed-off-by: Petr Lautrbach <plautrba@redhat.com>