Import psspy returns error: DLL load failed

asked 2023-10-24 19:34:15 -0500

Shahab Mehraeen
13 ●2 ●4 ●6

updated 2023-10-25 09:54:24 -0500

jconto
2601 ●10 ●30 ●40

I have installed PSS34. The installation GUI has installed Python 2.7 and I have included that address in my code.

import os
import sys
import xlwt
import xlrd
import scipy.io

# Importing the psspy run PSSE
PSSE_LOCATION = r"C:\Program Files (x86)\PTI\PSSEXplore34\PSSPY27"
sys.path.append(PSSE_LOCATION)
os.environ['PATH'] = os.environ['PATH'] + ';' + PSSE_LOCATION
print('sys.path')
import psspy

The Python code is called within MATLAB and psspy.pyc exists in PSSPY27 folder. But it returns the following error:

File ".\psspy.py", line 56, in <module> ImportError: DLL load failed: The specified module could not be found.