Fix importOldDatabase.py script

- Create argparse usage for input and output
 database paths

Author: connie

scripts/importOldDatabase.py

@@ -3,34 +3,42 @@
 
 """
 This script imports an RMG-Java database from the output directory and saves
-it in the input directory.
+it in the user-specified database directory.
+
+The outputDirectory can then be used to overwrite the existing RMG-database files.
 """
 
-import math
-import os.path
-import sys
-import time
-import subprocess
 import os
+import argparse
 
-from rmgpy.kinetics import KineticsData
-from rmgpy.data.kinetics import KineticsDatabase, KineticsGroups
 from rmgpy.data.rmg import RMGDatabase
 
 ################################################################################
 
 
 if __name__ == '__main__':
 
-
-    # Set the import and export paths
-    oldPath = 'output/RMG_database'
+    parser = argparse.ArgumentParser()
+    parser.add_argument('inputPath', metavar='INPUT', type=str, nargs=1,
+        help='the input path of the RMG-Java database directory')
+    parser.add_argument('outputPath', metavar='OUTPUT', type=str, nargs=1,
+        help='output path for the desired RMG-Py database directory')   
+    
+    args = parser.parse_args()
+    inputPath = args.inputPath[0]
+    outputPath = args.outputPath[0]
+    
     newPath = 'input'
 
     print 'Loading old RMG-Java database...'
     database = RMGDatabase()
-    database.loadOld(oldPath)
-      
+    database.loadOld(inputPath)
+    
+    try:
+        os.makedirs(outputPath)
+    except:
+        pass
+    
     print 'Saving the new RMG-Py database...'
-    database.save(newPath)
+    database.save(outputPath)
     print "Done!"