No graphviz on Macos.

Author: tobiasraabe

.github/workflows/main.yml

@@ -43,9 +43,6 @@ jobs:
           sudo apt-get update
           sudo apt-get install graphviz graphviz-dev
 
-      - if: matrix.os == 'macos-14'
-        run: brew install graphviz
-
       # Unit, integration, and end-to-end tests.
 
       - name: Run unit tests and doctests.

tox.ini

@@ -9,7 +9,7 @@ package = editable
 [testenv:test]
 extras = all, test
 deps =
-    pygraphviz;platform_system != "Windows"
+    pygraphviz;platform_system == "Linux"
 commands =
     pytest --nbmake {posargs}