metasploit: Fix python modules

pkgs/tools/security/metasploit/default.nix

@@ -4,6 +4,7 @@
 , makeWrapper
 , ruby
 , bundlerEnv
+, python3
 }:
 
 let
@@ -24,6 +25,7 @@ in stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ (python3.withPackages (ps: [ ps.requests ])) ];
 
   dontPatchELF = true; # stay away from exploit executables
 
@@ -32,6 +34,8 @@ in stdenv.mkDerivation rec {
 
     cp -r * $out/share/msf
 
+    grep -rl "^#\!.*python2$" $out/share/msf | xargs -d '\n' rm
+
     (
       cd $out/share/msf/
       for i in msf*; do