When I try to write brew install graphviz
in the terminal the error is
Error: The following formula
[#Dependency: "python" []>, #<Options: []>]
cannot be installed as binary package and must be built from source.
Install the Command Line Tools:
xcode-select --install
I tried already xcode-select --install
with the result:
"xcode-select: note: install requested for command line developer tools"
Once you have installed the xcode-select --install, you can proceed again with the brew install graphviz succesfully. Try it