colour.utilities.is_graphviz_installed

colour.utilities.is_graphviz_installed(raise_exception: bool = False) → bool

Return whether Graphviz is installed and available.

Parameters:

raise_exception (bool) – Whether to raise an exception if Graphviz is unavailable.

Returns:

Whether Graphviz is installed.

Return type:

bool

Raises:

ImportError – If Graphviz is not installed.