Try again at including python3 documentation

www/Makefile

@@ -9,6 +9,7 @@ all: index.html
 install:
 	mkdir -p $$out
 	cp style.css index.html $$out
+	ln -s $(PYDOCS) $$out/python3
 
 clean:
 	$(RM) index.html

www/default.nix

 { pkgs ? (import <nixpkgs> {}).pkgs
 }:
+let
+  baseVer = "3.6";
+  docsName = "python-${baseVer}.7-docs-html";
+  python-docs = pkgs.stdenv.mkDerivation {
+    name = "python3-docs";
+    src = pkgs.fetchurl
+      { url = "https://docs.python.org/${baseVer}/archives/${docsName}.tar.bz2";
+        # Unfortunately, this SHA can change on next download
+        sha256 = "03bkh48zyhrc4zvx9sdva048gk83hvgzr4wgd5w7z7d7rrv9b045";
+      };
+    unpackPhase = "";
+    buildPhases = ["installPhase"];
+    installPhase = ''
+      mkdir -p $out/share/doc
+      cd $out/share/doc
+      tar xf $src
+      mv ${docsName} python3
+    '';
+  };
+in
 pkgs.stdenv.mkDerivation {
   name = "www";
   src = ./.;
-  buildFlags = "--always-make";
+  buildFlags = ["--always-make"];
+  installFlags = ["PYDOCS=${python-docs}/share/doc/python3"];
   buildInputs = [pkgs.pandoc];
 }

www/index.org

@@ -4,7 +4,7 @@
 
 Welcome to the VM.
 
-Some documentation will be available here.
+- [[file:python3/][Python 3 documentation]]
 
 #+ATTR_HTML: :width 48
 [[https://iconsplace.com/wp-content/uploads/_icons/0000ff/256/png/virtual-machine-2-icon-2-256.png]]