Error 303 Reported From OpenDSS Intrinsic Function

[KapilDuwadi]

Versions

• Python version: 3.9
• Python architecture: x64
• Operating system and version: Windows 10
• OpenDSSDirect.py version number: 0.7.0

Feature Request

Bug

• What is the current behavior?*
  Running into issue executing the following command.
  dss.Text.Command('export cim100')

• What is the expected behavior? What is the motivation / use case for changing the behavior?

I was expecting a xml file output. The command works in OpenDSS GUI.

• What are the steps to reproduce this bug? Please provide a minimal working example of the bug if possible.*

You can use any opendss model and run the command dss.Text.Command('export cim100') to reproduce the bug.

• Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow, gitter, etc)

Traceback (most recent call last):
  File "opendss_xml\main.py", line 30, in <module>
    generate_xml_file()
  File "opendss_xml\main.py", line 28, in generate_xml_file
    dss.Text.Command("Export CIM100")
  File "opendssdirect\Text.py", line 17, in Command
    CheckForError()
  File "\lib\site-packages\dss\_cffi_api_util.py", line 128, in _check_for_error
    raise DSSException(error_num, self._get_string(self._lib.Error_Get_Description()))
dss._cffi_api_util.DSSException: (#303) Error 303 Reported From OpenDSS Intrinsic Function:

[PMeira]

Thanks for the report. There are some pending changes from the upstream OpenDSS that could help. I'll also try to add a test so it doesn't break again.

We should have a fixed release by next Monday.

[PMeira]

Done and new packages uploaded to PyPI. We'll prepare a release message on GitHub soon too, for the moment see the relevant changes at https://github.com/dss-extensions/dss_python/blob/master/docs/changelog.md#0130

Sorry for the delay, although this issue was easy to fix, some other issues needed more time.

On CIM specifically, I had to compare with OpenDSSCmd (which is also non-official, even though it's hosted besides the main OpenDSS) since there hasn't been an official OpenDSS release after several changes to the XML export. I have some reservations about OpenDSSCmd, but at least the output matched exactly.

I believe that, long term, it would be beneficial to move this code to a plug-in. Right now, there are a lot of intrusive and unnecessary changes just for CIMXML. Maybe DiTTo or a similar project would be a better home. I added some basic tests but such feature really needs a more extensive test-suite. Maybe there's already a test-suite outside of the OpenDSS SVN repository, but I couldn't find it yet.