Problem with 'import pyesapi'

[maksymfritsak]

Hello,
Installation was without any errors. However, when I run "import pyesapi" the following exception pops up:

Exception Traceback (most recent call last)
Cell In[2], line 1
----> 1 import pyesapi
2 #import atexit
3 #app = pyesapi.CustomScriptExecutable.CreateApplication('python_demo')
4 #atexit.register(app.Dispose);

File ~\AppData\Roaming\Python\Python311\site-packages\pyesapi_init_.py:44
41 paths = [os.path.join(drive, os.sep, base, ver, rp) for rp in rpaths]
43 if len(paths) < 2:
---> 44 raise Exception("Did not find required library paths! Searched for:\n %s" % (",\n".join(searched_paths)))
45 if len(paths) > 2:
46 print("WARNING: Found multiple possible VMS dll locations:\n %s" % (",\n".join(paths)))

Exception: Did not find required library paths! Searched for:
C:\Program Files (x86)\Varian\RTM%version\esapi\API,
C:\Program Files (x86)\Varian\RTM%version\ExternalBeam,
D:\Program Files (x86)\Varian\RTM%version\esapi\API,
D:\Program Files (x86)\Varian\RTM%version\ExternalBeam

How one can solve this?
Best wishes,
Maksym

[mvarsta]

PyESAPI is pythonnet wrapper over ESAPI/Eclipse and requires Eclipse installation to work. The exception tells that PyESAPI cannot find the requisite libraries in expected locations so try on machine with Eclipse installation at hand. ESAPI alone will not cut it because ESAPI, which is UI-less Eclipse client with some restrictions, relies on Eclipse proper.

[fizxmike]

Hi @maksymfritsak,
Can you confirm if you are trying to run PyESAPI from an Eclipse TBOX or VIC environment?

[LuisOlivaresJ]

Hi, I also have an import problem:

(pyesapi) C:\Users\lolivares>python
Python 3.10.12 | packaged by Anaconda, Inc. | (main, Jul  5 2023, 19:01:18) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyesapi
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\lolivares\AppData\Local\anaconda3\envs\pyesapi\lib\site-packages\pyesapi\__init__.py", line 83, in <module>
    from VMS.TPS.Common.Model.Types import *
ModuleNotFoundError: No module named 'VMS.TPS.Common.Model.Types'

My path to VMS...dll files is:

C:\Program Files (x86)\Varian\RTM\16.1\esapi\API

Additional info:
I am working in a TBOX, with Eclipse 16.1
I am usign a conda virtual environment (named pyesapi)
I have pyesapy 0.2.5, installed by pip install pyesapi

[LuisOlivaresJ]

Adding a reference seems to solve the problem:

clr.AddReference('VMS.TPS.Common.Model.Types')

I added it, next to line 74, and now I do not have the import error

PyESAPI/pyesapi/__init__.py

Line 74 in 2d5cd95

clr.AddReference('VMS.TPS.Common.Model.API')

If it is possible, I would like to create a pull request with the addition.