dots without any other actual relevant code shouldn't just complete, fixes #46

test/completion/basic.py

@@ -9,6 +9,16 @@ int()
 int(str)
 
 
+# -----------------
+# should not complete
+# -----------------
+#? []
+.
+#? []
+str..
+#? []
+a(0):.
+
 # -----------------
 # if/else/elif
 # -----------------