finesse.env.has_pygraphviz

finesse.env.has_pygraphviz()

Determine if pygraphviz and graphviz are available on the current path.

Returns:

bool

True if pygraphviz and graphviz are available, False otherwise.

Notes

This returns False if either pygraphviz or graphviz is not installed or correctly configured. If pygraphviz is installed but graphviz is not installed or could not be found, an import error complaining about something like “libagraph.so.1” is emitted (see the pygraphviz FAQ).