Revert "gh-75459: Doc: Tell sphinx to run graphviz"

This reverts commit 361eaca.

Author: rhansen

.github/workflows/reusable-docs.yml

@@ -80,12 +80,6 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-    - name: 'Install Dependencies'
-      run: |
-        sudo apt-get update &&
-        sudo env DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-            graphviz \
-            ;
     - uses: actions/checkout@v4
     - name: 'Set up Python'
       uses: actions/setup-python@v5

.readthedocs.yml

@@ -11,26 +11,25 @@ build:
   os: ubuntu-24.04
   tools:
     python: "3"
-  apt_packages:
-    - graphviz
-  jobs:
-    post_checkout:
-      # https://docs.readthedocs.io/en/stable/build-customization.html#cancel-build-based-on-a-condition
-      #
-      # Cancel building pull requests when there aren't changes in the Doc directory.
-      #
-      # If there are no changes (git diff exits with 0) we force the command to return with 183.
-      # This is a special exit code on Read the Docs that will cancel the build immediately.
-      - |
-        if [ "$READTHEDOCS_VERSION_TYPE" = "external" ] && [ "$(git diff --quiet origin/main -- Doc/ .readthedocs.yml; echo $?)" -eq 0 ];
-        then
-          echo "No changes to Doc/ - exiting the build.";
-          exit 183;
-        fi
 
-      - asdf plugin add uv
-      - asdf install uv latest
-      - asdf global uv latest
-      - make -C Doc venv html
-      - mkdir _readthedocs
-      - mv Doc/build/html _readthedocs/html
+  commands:
+    # https://docs.readthedocs.io/en/stable/build-customization.html#cancel-build-based-on-a-condition
+    #
+    # Cancel building pull requests when there aren't changes in the Doc directory.
+    #
+    # If there are no changes (git diff exits with 0) we force the command to return with 183.
+    # This is a special exit code on Read the Docs that will cancel the build immediately.
+    - |
+      if [ "$READTHEDOCS_VERSION_TYPE" = "external" ] && [ "$(git diff --quiet origin/main -- Doc/ .readthedocs.yml; echo $?)" -eq 0 ];
+      then
+        echo "No changes to Doc/ - exiting the build.";
+        exit 183;
+      fi
+
+    - asdf plugin add uv
+    - asdf install uv latest
+    - asdf global uv latest
+    - make -C Doc venv html
+    - mkdir _readthedocs
+    - mv Doc/build/html _readthedocs/html
+

Doc/c-api/lifecycle.dot

@@ -0,0 +1,96 @@
+digraph G {
+   graph [
+     fontname="svg"
+     fontsize=10.0
+     layout="dot"
+     ranksep=0.25
+   ]
+   node [
+     fontname="Courier"
+     fontsize=10.0
+   ]
+   edge [
+     fontname="Times-Italic"
+     fontsize=10.0
+   ]
+
+   "start" [fontname="Times-Italic" shape=plain label=<  start  > style=invis]
+   "tp_alloc" [href="typeobj.html#c.PyTypeObject.tp_alloc" target="_top"]
+   "tp_new" [href="typeobj.html#c.PyTypeObject.tp_new" target="_top"]
+   "tp_init" [href="typeobj.html#c.PyTypeObject.tp_init" target="_top"]
+   {
+     rank="same"
+     "alive" [
+       fontname="Times-Italic"
+       label=<alive, ref count &gt; 0>
+       shape=box
+     ]
+     "tp_traverse" [
+       href="typeobj.html#c.PyTypeObject.tp_traverse"
+       shape=octagon
+       target="_top"
+     ]
+   }
+   "tp_finalize" [
+     href="typeobj.html#c.PyTypeObject.tp_finalize"
+     shape=octagon
+     target="_top"
+   ]
+   "tp_clear" [
+     href="typeobj.html#c.PyTypeObject.tp_clear"
+     shape=octagon
+     target="_top"
+   ]
+   "ref0" [
+     fontname="Times-Italic"
+     label=<ref count == 0>
+     ordering="in"
+     shape=box
+   ]
+   "tp_dealloc" [href="typeobj.html#c.PyTypeObject.tp_dealloc" target="_top"]
+   "tp_free" [href="typeobj.html#c.PyTypeObject.tp_free" target="_top"]
+
+   "start" -> "tp_alloc"
+   "tp_alloc" -> "tp_new"
+   "tp_new" -> "tp_init"
+   "tp_init" -> "alive"
+   "tp_traverse" -> "alive"
+   "alive" -> "tp_traverse"
+   "alive" -> "tp_clear" [label=<  cyclic    <br/>isolate    >]
+   "alive" -> "tp_finalize" [
+     dir="back"
+     label=<  resurrected  >
+   ]
+   "alive" -> "tp_finalize" [label=<  cyclic    <br/>isolate    >]
+   "tp_finalize" -> "tp_clear"
+   "tp_finalize" -> "ref0"
+   "tp_clear" -> "ref0"
+   "tp_clear" -> "tp_dealloc" [
+     dir="back"
+     label=<  optional<br/>direct call  >
+   ]
+   "alive" -> "ref0"
+   "ref0" -> "tp_dealloc"
+   "tp_finalize" -> "tp_dealloc" [
+     dir="back"
+     href="lifecycle.html#c.PyObject_CallFinalizerFromDealloc"
+     label=<
+       <table border="0" cellborder="0" cellpadding="0" cellspacing="0">
+         <tr>
+           <td rowspan="4"> </td>
+           <td align="left">optional call to</td>
+           <td rowspan="4">      </td>
+         </tr>
+         <tr>
+           <td align="left"><font face="Courier">PyObject_Call</font></td>
+         </tr>
+         <tr>
+           <td align="left"><font face="Courier">FinalizerFrom</font></td>
+         </tr>
+         <tr><td align="left"><font face="Courier">Dealloc</font></td></tr>
+       </table>
+     >
+     target="_top"
+   ]
+   "tp_dealloc" -> "tp_free" [label=<  directly calls  >]
+}