PyTao v0.5.0

Changes

• Bug fix: Tao refused to initialize after the very first initialization attempt failed.

• Enhanced and reworked the pytao command-line interface

  • If in a directory with a tao.init file, PyTao can be started with just running pytao with no arguments.
  • IPython is used if available, though the regular Python interpreter will be used as a backup.

• For the command-line interface, as in JupyterLab mode, %tao and %%tao magics allow you to send commands directly to the Tao command-line.

  • For example: %tao show lat

• An even shorter shortcut is the input transformer.

  • This shortcut can be customized with the --pyprefix argument. Every IPython line that starts with this character will turn into a tao.cmd() line. It defaults to the backtick character (i.e., the key typically shared by tilde ~)

  • For example, noting the backtick:

  In [1]: ` show lat
  

• A preliminary Tao input mode is also available that behaves like the standard Tao command-line. Tab completion is offered for top-level commands and element names (in certain scenarios). To access it, either use tao.shell() or the single backtick shortcut:

  In [1]: `
  Tao> show lat
  

• New command-line arguments:

  • --help to see PyTao and Tao's command-line options
  • --pyplot to configure PyTao's plotting backend (mpl or bokeh)
  • --pyscript to run a Python script after Tao initialization
  • --pycommand to run a Python command after Tao initialization
  • --pylog set the Python log level
  • --pyno-subprocess use Tao instead of SubprocessTao
  • --pyquiet to hide the banner when starting pytao
  • --pytao to go straight to Tao mode without initializing a Tao object

Issues

• #130
• #129
• #128
• #101

Screenshots

The input transformer:

Tao> command-line mode:

Element name tab completion in Tao> command-line mode:

What's Changed

• ENH: pytao CLI rework with tab completion/magics + fixes for TaoInitializationError by @ken-lauer in #131

Full Changelog: v0.4.8...v0.5.0