Move gobject check from __init__ to __main__

Related to #1068

mopidy/__init__.py

@@ -2,7 +2,6 @@ from __future__ import absolute_import, print_function, unicode_literals
 
 import platform
 import sys
-import textwrap
 import warnings
 
 
@@ -11,21 +10,6 @@ if not (2, 7) <= sys.version_info < (3,):
         'ERROR: Mopidy requires Python 2.7, but found %s.' %
         platform.python_version())
 
-try:
-    import gobject   # noqa
-except ImportError:
-    print(textwrap.dedent("""
-        ERROR: The gobject Python package was not found.
-
-        Mopidy requires GStreamer (and GObject) to work. These are C libraries
-        with a number of dependencies themselves, and cannot be installed with
-        the regular Python tools like pip.
-
-        Please see http://docs.mopidy.com/en/latest/installation/ for
-        instructions on how to install the required dependencies.
-    """))
-    raise
-
 
 warnings.filterwarnings('ignore', 'could not open display')
 

mopidy/__main__.py

@@ -4,8 +4,23 @@ import logging
 import os
 import signal
 import sys
+import textwrap
+
+try:
+    import gobject   # noqa
+except ImportError:
+    print(textwrap.dedent("""
+        ERROR: The gobject Python package was not found.
+
+        Mopidy requires GStreamer (and GObject) to work. These are C libraries
+        with a number of dependencies themselves, and cannot be installed with
+        the regular Python tools like pip.
+
+        Please see http://docs.mopidy.com/en/latest/installation/ for
+        instructions on how to install the required dependencies.
+    """))
+    raise
 
-import gobject
 gobject.threads_init()
 
 try: