Python DBUS SESSION_BUS - X11 dependency

Question

I've got running sample python code which is fine in Ubuntu desktop: ``` import dbus, gobject from dbus.mainloop.glib import DBusGMainLoop from dbus.mainloop.glib import threads_init import subprocess from subprocess import call gobject.threads_init() threads_init() dbus.mainloop.glib.DBusGMainLoop( set_as_default = True ) p = subprocess.Popen('dbus-launch --sh-syntax', shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) call( "export DBUS_SESSION_BUS_ADDRESS" , shell=True ) call( "export DBUS_SESSION_BUS_PID" , shell=True ) bus = dbus.SessionBus() # get DBUS objects, do other stuff with SESSION_BUS # in same time we can start more independent processes with this file # finaly kill the SESSION_BUS process ``` After success on desktop I moved the code to the server edition which is only with shell. The dbus-launch starts the process, but python dbus.SessionBus() returns error with "/bin/dbus-launch terminated abnormally with the following error: Autolaunch error: X11 initiali…

Accepted Answer

The problem is that you're running the `export` calls in separate shells. You need to capture the output of `dbus-launch`, parse the values, and use `os.environ` to write them to the environment:

```
p = subprocess.Popen('dbus-launch', shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
for var in p.stdout:
  sp = var.split('=', 1)
  print sp
  os.environ[sp[0]] = sp[1][:-1]
```

Python DBUS SESSION_BUS - X11 dependency

Solution

Problem