python27Packages.pyunbound: 1.6.0 -> 1.7.3 (#42952)

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/pyunbound/versions.

These checks were done:

- built on NixOS

- 0 of 0 passed binary check by having a zero exit code.
- 0 of 0 passed binary check by having the new version present in output.
- found 1.7.3 with grep in /nix/store/1m9fiqaz72ry8jkwgw52v3wv1n5pgx0l-pyunbound-1.7.3
- directory tree listing: https://gist.github.com/2a7b7a3d8411e63dec56620537e2d00f
- du listing: https://gist.github.com/82633a34688c0630480a740b7562ac4c

pkgs/tools/networking/unbound/python.nix

@@ -5,11 +5,11 @@ let
 in stdenv.mkDerivation rec {
   pname = "pyunbound";
   name = "${pname}-${version}";
-  version = "1.6.0";
+  version = "1.7.3";
 
   src = fetchurl {
     url = "http://unbound.net/downloads/unbound-${version}.tar.gz";
-    sha256 = "1dzsxyp34ianp08wk4vf13qzl5ss5rr9v1p8zr1aggfywrsbhzbb";
+    sha256 = "0bb0p8nbda77ghx20yfl7hqxm9x709223q35465v99i8v4ay27f1";
   };
 
   buildInputs = [ openssl expat libevent swig python ];