diff --git a/neqsim/__init__.py b/neqsim/__init__.py
index f25d5b6..a6fae74 100644
--- a/neqsim/__init__.py
+++ b/neqsim/__init__.py
@@ -4,7 +4,7 @@
 It uses the Jpype module for bridging python and Java.
 """
 
-from .neqsimpython import *
+from neqsim.neqsimpython import jNeqSim, jpype
 
 def methods(checkClass):
     methods = checkClass.getClass().getMethods()
@@ -23,7 +23,6 @@ def has_tabulate():
 
 
 def setDatabase(connectionString):
-    from neqsim.neqsimpython import jNeqSim
     jNeqSim.util.database.NeqSimDataBase.setConnectionString(connectionString)
     jNeqSim.util.database.NeqSimDataBase.setCreateTemporaryTables(True)
 
@@ -31,14 +30,13 @@ def save_xml(javaobject, filename):
     xstream = jpype.JPackage('com.thoughtworks.xstream')
     streamer = xstream.XStream()
     xml = streamer.toXML(javaobject)
-    print(xml,  file=open(filename, 'w'))
+    print(xml, file=open(filename, 'w'))
     return xml
 
 def open_xml(filename):
     xstream = jpype.JPackage('com.thoughtworks.xstream')
-    security = jpype.JPackage('com.thoughtworks.xstream.security')
     streamer = xstream.XStream()
-    streamer.addPermission(security.AnyTypePermission.ANY)
+    streamer.addPermission(xstream.security.AnyTypePermission.ANY)
     str = open(filename, 'r').read()
     neqsimobj = streamer.fromXML(str)
     return neqsimobj