Dyntools import

asked 2024-07-21 11:23:24 -0600

lonely_coder
1 ●1 ●1 ●1

Hi all,

I am just starting out with PSSE and Python. I did dynamic simulation and created a number of OUT files that I want to export to Excel. I am aware of Dyntools and have found numerous examples on this website. However, if I try to import dyntools or try to run any of the python files from the EXAMPLE directory, I get an error:

ImportError: bad magic number in 'dyntools': b'\x03\xf3\r\n'

I use PSSE 34.3.0 and have Python 2.7 and Python 3.11 installed. I though it is related to the wrong environment hence I have installed "virtualenv" in Python and used "virtualenv -p c:\Python27\python.exe venv" to change to 2.7 environment, but I am still getting the same error.

Any ides what is wrong?

Thanks

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answered 2024-07-21 20:22:36 -0600

YKC
50 ●8 ●9 ●14

Hi, I would like to check first: You want to import dyntools in python, right? If so, you could add the following code in yours.

#import psse system
PSSE_LOCATION = r"C:\\Program Files (x86)\\PTI\\PSSE34\\PSSPY27"
sys.path.append(PSSE_LOCATION)
os.environ['PATH'] = os.environ['PATH'] + ';' +  PSSE_LOCATION 
import psse34
import psspihist, psspy, dyntools, redirect
_i = psspy.getdefaultint()
_f = psspy.getdefaultreal()
_s = psspy.getdefaultchar()
redirect.psse2py()
psspy.psseinit(100000000)

Also in case you need code to export out file to excel file, you could follow the code below and adjust to yours version. filename have to name as the same as your out file, and channels depend on which data you want to export, and also remind you that my code is export to csv file.

#convert out file to csv file, and choose all channels to export
output_obj = dyntools.CHNF(filename + '.out')
output_obj.csvout(channels=[1,2,3])

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Thank you. I managed to resolve the issue listed above. It was actually related to using the Python 3.4 and then finding modules that are compatible with it (numpy, matplotlib, etc.). However, once I now run your script, I get and error: AttributeError: 'CHNF' object has no attribute 'csvout'