Construct directed graph.

Author: ozgesevgili

construct_graph.py

@@ -7,7 +7,7 @@
 
 class Graph:
     def __init__(self, logfile='output.log'):
-        self._G = nx.Graph()
+        self._G = nx.DiGraph()
         # create logger
         self._logger = logging.getLogger('construct_graph')
         self._logger.setLevel(logging.DEBUG)
@@ -68,6 +68,10 @@ def create_nodes_from_db(self, longabsdb_path, labelsdb_path, lookupdb_path, sub
 
             count += 1
 
+        longabsdb.close()
+        labelsdb.close()
+        lookupdb.close()
+
     # takes file a parameter:
     # file contains edge at each line, like (1, 2).
     def create_edges_from_file(self, path):