Gfx module should only be loaded if Gfx is enabled in init_cl.py

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2000 5a81b35b-ba03-0410-adc8-b2c5c5119f08

scripts/init_cl.py

@@ -4,12 +4,16 @@ if platform.machine()=='x86_64':
 else:
   sys.path.insert(0,os.getenv('DNG_ROOT')+'/lib/openstructure')
      
-from ost import io, mol, seq, gfx, conop, geom
+from ost import io, mol, seq, conop, geom
 import ost
 try: 
   from ost import img
 except ImportError:
   pass
+try:
+  from ost import gfx
+except ImportError:
+  pass
 ost.SetPrefixPath(os.getenv('DNG_ROOT'))
 def _InitRuleBasedBuilder():
   compound_lib_path=os.path.join(ost.GetSharedDataPath(), 'compounds.chemlib')