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Hi,

I am trying to run simple dynamic simulation from python shell using following script.

import os,sys
import csv
import pssepath

pssepath.add_pssepath()

SaveFile="YPS_CONV.sav"
SnapFile="YPS_SNP.snp"
OutFile="Test_Line.out"
path=os.getcwd();
print path

import redirect
import psspy

redirect.psse2py();

ierr= psspy.psseinit(buses=150000);

psspy.case(os.path.join(path,SaveFile))
psspy.rstr(os.path.join(path,SnapFile))
psspy.strt(0,os.path.join(path,OutFile))
print os.path.join(path,Outfile)
psspy.run(0, 1.0,10,10,10)

Whenever I run this code it works fine up to "psspy.rstr" (load snap file) and try to do something for next command and shell "Restarts" itself.

If I run same code from "psse" itself, it works fine.

I have seen many of us have used the same code and it seems it is working fine for others.

can someone please help?

Following is the log output (sorry site didn't allow me to attache the file so have to copy it here).

---------- Code output-----------------------------

C:\Users\hbavarva\Desktop\Test_Dyn

PSS®E - NT Version 32 Copyright (c) 1976-2014 Siemens Energy, Inc., Power Technologies International (PTI) This program is a confidential unpublished work created and first licensed in 1976. It is a trade secret which is the property of PTI. All use, disclosure, and/or reproduction not specifically authorized by PTI is prohibited. This program is protected under copyright laws of non-U.S. countries and by application of international treaties. All Rights Reserved Under The Copyright Laws.

       SIEMENS POWER TECHNOLOGIES INTERNATIONAL

    150000 BUS POWER SYSTEM SIMULATOR--PSS®E-32.0.0

         INITIATED ON FRI, MAY 23 2014  12:35

VALID SOLUTION, COST FUNCTION:0.0000000000, QUALITY FACTOR:B THE SOLVED LOADFLOW OPTION HAS NOT BEEN SELECTED IN THIS LOA

CASE C:\Users\hbavarva\Desktop\TestDyn\YPSCONV.sav WAS SAVED ON THU, MAY 15 2014 9:01

DEFAULT OPTIONS MODIFIED: GRAPHICS TERMINAL TYPE: 26 NON-TRANSFORMER BRANCH PERCENT LOADINGS: MVA CHANNEL 239: BUS 0 NOT FOUND.......................... ...................................

SNAPSHOT C:\Users\hbavarva\Desktop\TestDyn\YPSSNP.snp WAS SAVED ON THU, MAY 15 2014 9:01

NUMBER OF ELEMENTS RESTORED: CONS STATES VARS ICONS CHANNELS 25189 7200 3893 1703 301

2007 DIAGONAL AND 3294 OFF-DIAGONAL ELEMENTS

================================ RESTART ================================

Thanks