Your Graphviz installation could not be found.
1) You don't have Graphviz installed:
Install Graphviz (http://graphviz.org)
2) Your Graphviz package might incomplete.
Install the binary development subpackage (e.g. libgraphviz-dev or similar.)
3) You are using Windows
There are no PyGraphviz binary packages for Windows but you might be
able to build it from this source. See
http://networkx.lanl.gov/pygraphviz/reference/faq.html
If you think your installation is correct you will need to manually
provide path to graphviz include and library. For example:
pip install pygraphviz --install-option="--include-path=/usr/include/graphviz" --install-option="--library-path=/usr/lib/graphviz/"
The current setting of library_dirs and include_dirs is:
library_dirs=None
include_dirs=None
error: Error locating graphviz.
Failed building wheel for pygraphviz
Running setup.py clean for pygraphviz
Failed to build pygraphviz
Installing collected packages: pygraphviz
Running setup.py install for pygraphviz ... error
Complete output from command /usr/local/opt/python/bin/python3.7 -u -c "import setuptools, tokenize;file='/private/var/folders/tl/vh0p3k113bx20dnv50s4pv3h0000gn/T/pip-install-i_qa55z_/pygraphviz/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record /private/var/folders/tl/vh0p3k113bx20dnv50s4pv3h0000gn/T/pip-record-6rau2afj/install-record.txt --single-version-externally-managed --compile:
running install
Trying dpkg
Failed to find dpkg
Trying pkg-config
Failed to find pkg-config
Trying dotneato-config
Failed to find dotneato-config
Failed to find dotneato-config
Your Graphviz installation could not be found.
1) You don't have Graphviz installed:
Install Graphviz (http://graphviz.org)
2) Your Graphviz package might incomplete.
Install the binary development subpackage (e.g. libgraphviz-dev or similar.)
3) You are using Windows
There are no PyGraphviz binary packages for Windows but you might be
able to build it from this source. See
http://networkx.lanl.gov/pygraphviz/reference/faq.html
If you think your installation is correct you will need to manually
provide path to graphviz include and library. For example:
pip install pygraphviz --install-option="--include-path=/usr/include/graphviz" --install-option="--library-path=/usr/lib/graphviz/"
The current setting of library_dirs and include_dirs is:
library_dirs=None
include_dirs=None
error: Error locating graphviz.
----------------------------------------
Command "/usr/local/opt/python/bin/python3.7 -u -c "import setuptools, tokenize;file='/private/var/folders/tl/vh0p3k113bx20dnv50s4pv3h0000gn/T/pip-install-i_qa55z_/pygraphviz/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record /private/var/folders/tl/vh0p3k113bx20dnv50s4pv3h0000gn/T/pip-record-6rau2afj/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/tl/vh0p3k113bx20dnv50s4pv3h0000gn/T/pip-install-i_qa55z_/pygraphviz/
I'm using High Sierra.