PassManager.draw

PassManager.draw(filename=None, style=None, raw=False)[source]

Draw the pass manager.

This function needs pydot, which in turn needs Graphviz to be installed.

Parameters

  • filename (str) – file path to save image to.

  • style (dict) – keys are the pass classes and the values are the colors to make them. An example can be seen in the DEFAULT_STYLE. An ordered dict can be used to ensure a priority coloring when pass falls into multiple categories. Any values not included in the provided dict will be filled in from the default dict.

  • raw (bool) – If True, save the raw Dot output instead of the image.

Returns

an in-memory representation of the pass manager, or None if no image was generated or Pillow is not installed.

Return type

Optional[PassManager]

Raises

ImportError – when nxpd or pydot not installed.