PyTraverser

PyTraverser is a Python library for text based traversing of MDSplus trees. It provides both a command line callable interfaces.

This package uses mdsthin to access MDSplus information. Define MDS_HOST environment to be the server to use. For example:

export MDS_HOST=alcdata

Features

• Traverse trees and graphs with customizable strategies
• Depth-first and breadth-first traversal support
• Node filtering and transformation utilities
• Easy integration with existing Python data structures

Installation

pip install pytraverser

Key Bindings

"[b]click[/b]/[b]⏎[/b] Expand/Collapse + select   "
"[b]⇥[/b] Decompile  "
"[b]⇧⇥[/b] Show Data  " 
"[b]←[/b] Collapse Parent   "
"[b]→[/b] Expand   "
"[b]↓[/b] Move Down + expand   "
"[b]↑[/b] move Up"

Usage Shell

usage: pytraverser [-h] [-d | -l] tree [shot]

Tree, optional shot, dark flag

positional arguments:
  tree         Tree string
  shot         Optional shot number (default -1)

options:
  -h, --help   show this help message and exit
  -d, --dark   Enable dark mode
  -l, --light  Enable light mode

Python Usage

$ python
Python 3.10.12 (main, Aug 15 2025, 14:32:43) [GCC 11.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from pytraverser import traverse
>>> node = traverse("cmod", -1) #type 'q' to exit 
>>> node
.EDGE.CRYOPUMP
>>> 

Contributing

Contributions are welcome! Please open issues or submit pull requests on GitHub.

License

This project is licensed under the MIT License.