python3 compatibility fixes for remaining areas in code where we try to access...

100% motivated by issues faced with dtdphi code. No reason not to nip this all far in advance of any issues.

python3 compatibility fixes for remaining areas in code where we try to access values from new view of dict

gstlal/python/plots/psd.py

@@ -50,8 +50,8 @@ def summarize_coinc_xmldoc(coinc_xmldoc):
 	#process, = lsctables.ProcessTable.get_table(coinc_xmldoc)
 	sngl_inspirals = dict((row.ifo, row) for row in lsctables.SnglInspiralTable.get_table(coinc_xmldoc))
 
-	mass1 = sngl_inspirals.values()[0].mass1
-	mass2 = sngl_inspirals.values()[0].mass2
+	mass1 = list(sngl_inspirals.values())[0].mass1
+	mass2 = list(sngl_inspirals.values())[0].mass2
 	if mass1 < mass2:
 		mass1, mass2 = mass2, mass1
 	end_time = coinc_inspiral.end