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https://github.com/VarianAPIs/PyESAPI

Python interface to Eclipse Scripting API
https://github.com/VarianAPIs/PyESAPI

medical-physics python

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Python interface to Eclipse Scripting API

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README 

        
# PyESAPI

"Pi-e-Sappy" for research use only.



A passion project to help accelerate breakthroughs in medical physics research by bringing the power of Python into the Varian API ecosystem.

PyESAPI combined with Jupyter Notebook gives you a "command line to Eclipse" allowing you to rapidly prototype your ESAPI scripts or research ideas.



## Quick Start (updated July 17th 2024)



* Access your Eclipse 15.5 (or later) TBOX desktop or Varian Innovation Center environment

* Install Python 3.10 or later from: https://www.python.org/downloads/

  * Be sure to check the option to "add python.exe to PATH" (unless you are already managing multiple versions of Python)

  * Note: If you use an older version of Python, your milage may vary.

* Launch "Command Prompt" by searching in Windows menu

* Navigate to a directory where you would like to store your first PyESAPI project using the `cd` command

* In the prompt, execute the commands:

  * `pip install pyesapi`

  * `pip install jupyter`

* Then execute the command `jupyter notebook`

* Create a new notebook and see below for examples (if you are using a python virtual environment, be sure not to select "root" kernel).



## Examples

### Jupyter Notebooks (from Developer Workshop 2018)

  * [Getting Started](http://nbviewer.jupyter.org/github/VarianAPIs/PyESAPI/blob/master/examples/DeveloperWorkshop2018/GettingStarted.ipynb)

  * [Data Mining](http://nbviewer.jupyter.org/github/VarianAPIs/PyESAPI/blob/master/examples/DeveloperWorkshop2018/DataMining.ipynb)

  * [10xResearch](http://nbviewer.jupyter.org/github/VarianAPIs/PyESAPI/blob/master/examples/DeveloperWorkshop2018/10xResearch.ipynb)

* Stand-alone python script: [standalone.py](examples/standalone.py)



## Additional Resources

PyESAPI wraps the official ESAPI interface, so a majority of the guidance on ESAPI caries over.

* "Online" Help documentation in Eclipse External Beam (under question mark menu in upper right-hand side of the window)

  * ![image](https://github.com/user-attachments/assets/f749caca-ae32-4e2d-9138-8e3c0eefb8bb)



* [Varian API Book](https://varianapis.github.io/VarianApiBook.pdf) - contributions from the usual suspects

* [ESAPI Code Samples](https://github.com/VarianAPIs/Varian-Code-Samples) - full ESAPI projects from previous workshops

* [ESAPI Subreddit](https://www.reddit.com/r/esapi/) - active ESAPI community



## Known issues

* PyESAPI is not compatible with vscode-jupyter plugin which uses multithreading. ESAPI only allows for single-thread access to objects.

* Python 3.12 may require Microsoft Visual C++ 14.0 or greater. If you are using a VIC environment, you can get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/

  * Note: anaconda provieds pre-built binaries for popular packages.



## Upgrading

* `pip install --upgrade pysapi`

  * This will check and upgrade PyESAPI if a newer version is available



## Recommended tooling:

Now that you've had a chance to explore the capabilities of PyESAPI, it's time to get more organized. Below are some recommendations on platforms and software to develop with.

  * Varian Innovation Center Eclipse environment (or local TBOX)

  * VisualStudio Code (lightweight IDE)

  * Google Chrome or Microsoft Edge set as default browser (for better Jupyter Notebook experience)

  * Git or GitHub Desktop (code repository and open source collaboration)



# Development Notes

For those wishing to contribute to PyESAPI or use PyESAPI with pre-released local builds of Eclipse.



## Custom ESAPI DLL path

Set custom ESAPI_PATH (to DLLs) before import (bypasses production directory path search)

```python

import os

os.environ['ESAPI_PATH'] = r'C:\Users\CoolKid\Source\Magic\Bin\Debug64'

import pyesapi

# ...

```



## Stub Gen (experimental/under construction)

To create lintable code and enable code completion (in Visual Studio Code at least) we can generate python stubs for ESAPI libs using IronPython...

1. [Download](https://ironpython.net/download/) and install IronPython (2.7.9 tested to work) in default location (C:\Program Files\IronPython 2.7\ipy.exe).

1. Load ironpython-stubs submodule `git submodule update --init` (ironstubs)

1. Move to stubgen folder `cd stubgen`

1. Execute script `stubgen.ps1` (if you hit a Pdb prompt, type continue)

1. Commit updates to stubs folder