diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -15,6 +15,7 @@ test:
 test-clean:
 	rm -rf coverage.xml htmlcov junit.xml pylint.log result
 	find . -type d -name "__pycache__" -prune -exec rm -rf '{}' ';'
+	find . -type f \( -iname '.coverage.*' \) -exec rm '{}' ';'
 
 test-only:
 	PYTHONHASHSEED=random \
@@ -22,7 +23,7 @@ test-only:
 	--cov=vcsserver --cov-report=term-missing --cov-report=html vcsserver
 
 generate-pkgs:
-	nix-shell pkgs/shell-generate.nix --command "pip2nix generate --licenses"
+	nix-shell pkgs/shell-generate.nix --command "pip2nix generate --licenses --no-binary :all:"
 
 pip-packages:
 	python ${OUTDATED_PACKAGES}
diff --git a/default.nix b/default.nix
--- a/default.nix
+++ b/default.nix
@@ -33,20 +33,22 @@ let
 
   # Evaluates to the last segment of a file system path.
   basename = path: with pkgs.lib; last (splitString "/" path);
+  startsWith = prefix: full: let
+    actualPrefix = builtins.substring 0 (builtins.stringLength prefix) full;
+  in actualPrefix == prefix;
 
   # source code filter used as arugment to builtins.filterSource.
   src-filter = path: type: with pkgs.lib;
     let
       ext = last (splitString "." path);
+      parts = last (splitString "/" path);
     in
       !builtins.elem (basename path) [
         ".git" ".hg" "__pycache__" ".eggs" ".idea" ".dev"
         "node_modules" "node_binaries"
         "build" "data" "result" "tmp"] &&
       !builtins.elem ext ["egg-info" "pyc"] &&
-      # TODO: johbo: This check is wrong, since "path" contains an absolute path,
-      # it would still be good to restore it since we want to ignore "result-*".
-      !hasPrefix "result" path;
+      !startsWith "result" (basename path);
 
   sources =
     let
@@ -55,6 +57,7 @@ let
         all
         isString
         attrValues;
+
       sourcesConfig = pkgs.config.rc.sources or {};
     in
       # Ensure that sources are configured as strings. Using a path
@@ -82,20 +85,25 @@ let
       # expose following attributed outside
       passthru = {
         pythonPackages = self;
+        vcs_pkgs = pkgs;
       };
 
+      buildInputs =
+        attrs.buildInputs or [] ++ [
+
+        ];
+
+      #NOTE: option to inject additional propagatedBuildInputs
       propagatedBuildInputs =
         attrs.propagatedBuildInputs or [] ++ [
         pkgs.git
         pkgs.subversion
       ];
 
-      # set some default locale env variables
-      LC_ALL = "en_US.UTF-8";
-      LOCALE_ARCHIVE =
-        if pkgs.stdenv.isLinux
-        then "${pkgs.glibcLocales}/lib/locale/locale-archive"
-        else "";
+      preBuild = ''
+        export NIX_PATH=nixpkgs=${pkgs.path}
+        export SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt
+      '';
 
       # Add bin directory to path so that tests can find 'vcsserver'.
       preCheck = ''
@@ -126,6 +134,8 @@ let
 
         # python based programs need to be wrapped
         mkdir -p $out/bin
+
+        # required binaries from dependencies
         ln -s ${self.python}/bin/python $out/bin/
         ln -s ${self.gunicorn}/bin/gunicorn $out/bin/
         ln -s ${self.pyramid}/bin/prequest $out/bin/
@@ -161,6 +171,7 @@ let
     });
   };
 
+
   basePythonPackages = with builtins;
     if isAttrs pythonPackages then
       pythonPackages
@@ -168,22 +179,14 @@ let
       getAttr pythonPackages pkgs;
 
   pythonGeneratedPackages = import ./pkgs/python-packages.nix {
-    inherit
-      pkgs;
-    inherit
-      (pkgs)
-      fetchurl
-      fetchgit
-      fetchhg;
+    inherit pkgs;
+    inherit (pkgs) fetchurl fetchgit fetchhg;
   };
 
   pythonVCSServerOverrides = import ./pkgs/python-packages-overrides.nix {
-    inherit
-      pkgs
-      basePythonPackages;
+    inherit pkgs basePythonPackages;
   };
 
-
   # Apply all overrides and fix the final package set
   myPythonPackagesUnfix = with pkgs.lib;
     (extends pythonExternalOverrides
diff --git a/pkgs/python-packages-overrides.nix b/pkgs/python-packages-overrides.nix
--- a/pkgs/python-packages-overrides.nix
+++ b/pkgs/python-packages-overrides.nix
@@ -16,13 +16,13 @@ in
 self: super: {
 
   "cffi" = super."cffi".override (attrs: {
-    buildInputs = [
+    buildInputs = with self; attrs.buildInputs ++ [
       pkgs.libffi
     ];
   });
 
   "gevent" = super."gevent".override (attrs: {
-    propagatedBuildInputs = attrs.propagatedBuildInputs ++ [
+    propagatedBuildInputs = with self; attrs.propagatedBuildInputs ++ [
       # NOTE: (marcink) odd requirements from gevent aren't set properly,
       # thus we need to inject psutil manually
       self."psutil"
@@ -39,15 +39,17 @@ self: super: {
 
   "subvertpy" = super."subvertpy".override (attrs: {
     SVN_PREFIX = "${pkgs.subversion.dev}";
-    propagatedBuildInputs = [
+    nativeBuildInputs = with self; attrs.nativeBuildInputs ++ [
       pkgs.apr.dev
       pkgs.aprutil
+    ];
+    buildInputs = with self; [
       pkgs.subversion
     ];
   });
 
   "mercurial" = super."mercurial".override (attrs: {
-    propagatedBuildInputs = [
+    nativeBuildInputs = with self; attrs.nativeBuildInputs ++ [
       # self.python.modules.curses
     ];
   });
@@ -59,10 +61,19 @@ self: super: {
   });
 
   "pygit2" = super."pygit2".override (attrs: {
-    propagatedBuildInputs = attrs.propagatedBuildInputs ++ [
+    nativeBuildInputs = with self; attrs.nativeBuildInputs ++ [
       pkgs.libffi
       pkgs.libgit2rc
     ];
+    buildInputs = with self; attrs.buildInputs ++ [
+      pkgs.libgit2rc
+    ];
+  });
+
+  "py" = super."py".override (attrs: {
+    buildInputs = with self; attrs.buildInputs ++ [
+      self."setuptools-scm"
+    ];
   });
 
   # Avoid that base packages screw up the build process
diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -1,1090 +1,1535 @@
-# Generated by pip2nix 0.8.0.dev1
-# See https://github.com/johbo/pip2nix
+# Generated by pip2nix 0.9.0
+# See https://github.com/nix-community/pip2nix
 
 { pkgs, fetchurl, fetchgit, fetchhg }:
 
 self: super: {
-  "atomicwrites" = super.buildPythonPackage {
-    name = "atomicwrites-1.3.0";
-    doCheck = false;
+  "atomicwrites" = super.buildPythonPackage rec {
+    pname = "atomicwrites";
+    version = "1.4.0";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/ec/0f/cd484ac8820fed363b374af30049adc8fd13065720fd4f4c6be8a2309da7/atomicwrites-1.3.0.tar.gz";
-      sha256 = "19ngcscdf3jsqmpcxn6zl5b6anmsajb6izp1smcd1n02midl9abm";
+      url = "https://files.pythonhosted.org/packages/55/8d/74a75635f2c3c914ab5b3850112fd4b0c8039975ecb320e4449aa363ba54/atomicwrites-1.4.0.tar.gz";
+      sha256 = "0yla2svfhfqrcj8qbyqzx7wi4jy0dwcxvlkg0k3zjd54s5m3jw5f";
     };
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
-  "attrs" = super.buildPythonPackage {
-    name = "attrs-19.3.0";
+    format = "setuptools";
     doCheck = false;
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/98/c3/2c227e66b5e896e15ccdae2e00bbc69aa46e9a8ce8869cc5fa96310bf612/attrs-19.3.0.tar.gz";
-      sha256 = "0wky4h28n7xnr6xv69p9z6kv8bzn50d10c3drmd9ds8gawbcxdzp";
-    };
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "backports.shutil-get-terminal-size" = super.buildPythonPackage {
-    name = "backports.shutil-get-terminal-size-1.0.0";
-    doCheck = false;
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/ec/9c/368086faa9c016efce5da3e0e13ba392c9db79e3ab740b763fe28620b18b/backports.shutil_get_terminal_size-1.0.0.tar.gz";
-      sha256 = "107cmn7g3jnbkp826zlj8rrj19fam301qvaqf0f3905f5217lgki";
-    };
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
-  "beautifulsoup4" = super.buildPythonPackage {
-    name = "beautifulsoup4-4.6.3";
-    doCheck = false;
+  "attrs" = super.buildPythonPackage rec {
+    pname = "attrs";
+    version = "19.3.0";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/88/df/86bffad6309f74f3ff85ea69344a078fc30003270c8df6894fca7a3c72ff/beautifulsoup4-4.6.3.tar.gz";
-      sha256 = "041dhalzjciw6qyzzq7a2k4h1yvyk76xigp35hv5ibnn448ydy4h";
-    };
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
+      url = "https://files.pythonhosted.org/packages/98/c3/2c227e66b5e896e15ccdae2e00bbc69aa46e9a8ce8869cc5fa96310bf612/attrs-19.3.0.tar.gz";
+      sha256 = "0wky4h28n7xnr6xv69p9z6kv8bzn50d10c3drmd9ds8gawbcxdzp";
     };
-  };
-  "cffi" = super.buildPythonPackage {
-    name = "cffi-1.12.3";
+    format = "setuptools";
     doCheck = false;
-    propagatedBuildInputs = [
-      self."pycparser"
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [
+      self."setuptools"
+      self."wheel"
     ];
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/93/1a/ab8c62b5838722f29f3daffcc8d4bd61844aa9b5f437341cc890ceee483b/cffi-1.12.3.tar.gz";
-      sha256 = "0x075521fxwv0mfp4cqzk7lvmw4n94bjw601qkcv314z5s182704";
-    };
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "configobj" = super.buildPythonPackage {
-    name = "configobj-5.0.6";
+  "backports.shutil-get-terminal-size" = super.buildPythonPackage rec {
+    pname = "backports.shutil-get-terminal-size";
+    version = "1.0.0";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/ec/9c/368086faa9c016efce5da3e0e13ba392c9db79e3ab740b763fe28620b18b/backports.shutil_get_terminal_size-1.0.0.tar.gz";
+      sha256 = "107cmn7g3jnbkp826zlj8rrj19fam301qvaqf0f3905f5217lgki";
+    };
+    format = "setuptools";
     doCheck = false;
-    propagatedBuildInputs = [
-      self."six"
-    ];
-    src = fetchurl {
-      url = "https://code.rhodecode.com/upstream/configobj/artifacts/download/0-012de99a-b1e1-4f64-a5c0-07a98a41b324.tar.gz?md5=6a513f51fe04b2c18cf84c1395a7c626";
-      sha256 = "0kqfrdfr14mw8yd8qwq14dv2xghpkjmd3yjsy8dfcbvpcc17xnxp";
-    };
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
-      license = [ pkgs.lib.licenses.bsdOriginal ];
+      license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "configparser" = super.buildPythonPackage {
-    name = "configparser-4.0.2";
-    doCheck = false;
+  "beautifulsoup4" = super.buildPythonPackage rec {
+    pname = "beautifulsoup4";
+    version = "4.6.3";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/16/4f/48975536bd488d3a272549eb795ac4a13a5f7fcdc8995def77fbef3532ee/configparser-4.0.2.tar.gz";
-      sha256 = "1priacxym85yjcf68hh38w55nqswaxp71ryjyfdk222kg9l85ln7";
+      url = "https://files.pythonhosted.org/packages/88/df/86bffad6309f74f3ff85ea69344a078fc30003270c8df6894fca7a3c72ff/beautifulsoup4-4.6.3.tar.gz";
+      sha256 = "041dhalzjciw6qyzzq7a2k4h1yvyk76xigp35hv5ibnn448ydy4h";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "contextlib2" = super.buildPythonPackage {
-    name = "contextlib2-0.6.0.post1";
-    doCheck = false;
+  "cffi" = super.buildPythonPackage rec {
+    pname = "cffi";
+    version = "1.12.3";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/02/54/669207eb72e3d8ae8b38aa1f0703ee87a0e9f88f30d3c0a47bebdb6de242/contextlib2-0.6.0.post1.tar.gz";
-      sha256 = "0bhnr2ac7wy5l85ji909gyljyk85n92w8pdvslmrvc8qih4r1x01";
-    };
-    meta = {
-      license = [ pkgs.lib.licenses.psfl ];
+      url = "https://files.pythonhosted.org/packages/93/1a/ab8c62b5838722f29f3daffcc8d4bd61844aa9b5f437341cc890ceee483b/cffi-1.12.3.tar.gz";
+      sha256 = "0x075521fxwv0mfp4cqzk7lvmw4n94bjw601qkcv314z5s182704";
     };
-  };
-  "cov-core" = super.buildPythonPackage {
-    name = "cov-core-1.15.0";
+    format = "setuptools";
     doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
     propagatedBuildInputs = [
-      self."coverage"
+      self."pycparser"
     ];
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/4b/87/13e75a47b4ba1be06f29f6d807ca99638bedc6b57fa491cd3de891ca2923/cov-core-1.15.0.tar.gz";
-      sha256 = "0k3np9ymh06yv1ib96sb6wfsxjkqhmik8qfsn119vnhga9ywc52a";
-    };
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "coverage" = super.buildPythonPackage {
-    name = "coverage-4.5.4";
-    doCheck = false;
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/85/d5/818d0e603685c4a613d56f065a721013e942088047ff1027a632948bdae6/coverage-4.5.4.tar.gz";
-      sha256 = "0p0j4di6h8k6ica7jwwj09azdcg4ycxq60i9qsskmsg94cd9yzg0";
-    };
-    meta = {
-      license = [ pkgs.lib.licenses.asl20 ];
-    };
-  };
-  "decorator" = super.buildPythonPackage {
-    name = "decorator-4.1.2";
-    doCheck = false;
+  "configobj" = super.buildPythonPackage rec {
+    pname = "configobj";
+    version = "5.0.6";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/bb/e0/f6e41e9091e130bf16d4437dabbac3993908e4d6485ecbc985ef1352db94/decorator-4.1.2.tar.gz";
-      sha256 = "1d8npb11kxyi36mrvjdpcjij76l5zfyrz2f820brf0l0rcw4vdkw";
-    };
-    meta = {
-      license = [ pkgs.lib.licenses.bsdOriginal { fullName = "new BSD License"; } ];
+      url = "https://code.rhodecode.com/upstream/configobj/artifacts/download/0-012de99a-b1e1-4f64-a5c0-07a98a41b324.tar.gz?md5=6a513f51fe04b2c18cf84c1395a7c626";
+      sha256 = "0kqfrdfr14mw8yd8qwq14dv2xghpkjmd3yjsy8dfcbvpcc17xnxp";
     };
-  };
-  "dogpile.cache" = super.buildPythonPackage {
-    name = "dogpile.cache-0.9.0";
+    format = "setuptools";
     doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
     propagatedBuildInputs = [
-      self."decorator"
+      self."six"
     ];
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/ac/6a/9ac405686a94b7f009a20a50070a5786b0e1aedc707b88d40d0c4b51a82e/dogpile.cache-0.9.0.tar.gz";
-      sha256 = "0sr1fn6b4k5bh0cscd9yi8csqxvj4ngzildav58x5p694mc86j5k";
-    };
     meta = {
       license = [ pkgs.lib.licenses.bsdOriginal ];
     };
   };
-  "dogpile.core" = super.buildPythonPackage {
-    name = "dogpile.core-0.4.1";
-    doCheck = false;
+  "configparser" = super.buildPythonPackage rec {
+    pname = "configparser";
+    version = "4.0.2";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/0e/77/e72abc04c22aedf874301861e5c1e761231c288b5de369c18be8f4b5c9bb/dogpile.core-0.4.1.tar.gz";
-      sha256 = "0xpdvg4kr1isfkrh1rfsh7za4q5a5s6l2kf9wpvndbwf3aqjyrdy";
-    };
-    meta = {
-      license = [ pkgs.lib.licenses.bsdOriginal ];
+      url = "https://files.pythonhosted.org/packages/16/4f/48975536bd488d3a272549eb795ac4a13a5f7fcdc8995def77fbef3532ee/configparser-4.0.2.tar.gz";
+      sha256 = "1priacxym85yjcf68hh38w55nqswaxp71ryjyfdk222kg9l85ln7";
     };
-  };
-  "dulwich" = super.buildPythonPackage {
-    name = "dulwich-0.13.0";
+    format = "setuptools";
     doCheck = false;
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/84/95/732d280eee829dacc954e8109f97b47abcadcca472c2ab013e1635eb4792/dulwich-0.13.0.tar.gz";
-      sha256 = "0f1jwvrh549c4rgavkn3wizrch904s73s4fmrxykxy9cw8s57lwf";
-    };
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [
+      self."setuptools"
+      self."wheel"
+      self."setuptools-scm"
+    ];
+    propagatedBuildInputs = [];
     meta = {
-      license = [ pkgs.lib.licenses.gpl2Plus ];
+      license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "enum34" = super.buildPythonPackage {
-    name = "enum34-1.1.10";
-    doCheck = false;
+  "contextlib2" = super.buildPythonPackage rec {
+    pname = "contextlib2";
+    version = "0.6.0.post1";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/11/c4/2da1f4952ba476677a42f25cd32ab8aaf0e1c0d0e00b89822b835c7e654c/enum34-1.1.10.tar.gz";
-      sha256 = "0j7ji699fwswm4vg6w1v07fkbf8dkzdm6gfh88jvs5nqgr3sgrnc";
+      url = "https://files.pythonhosted.org/packages/02/54/669207eb72e3d8ae8b38aa1f0703ee87a0e9f88f30d3c0a47bebdb6de242/contextlib2-0.6.0.post1.tar.gz";
+      sha256 = "0bhnr2ac7wy5l85ji909gyljyk85n92w8pdvslmrvc8qih4r1x01";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
-      license = [ pkgs.lib.licenses.bsdOriginal ];
+      license = [ pkgs.lib.licenses.psfl ];
     };
   };
-  "funcsigs" = super.buildPythonPackage {
-    name = "funcsigs-1.0.2";
-    doCheck = false;
+  "cov-core" = super.buildPythonPackage rec {
+    pname = "cov-core";
+    version = "1.15.0";
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/94/4a/db842e7a0545de1cdb0439bb80e6e42dfe82aaeaadd4072f2263a4fbed23/funcsigs-1.0.2.tar.gz";
-      sha256 = "0l4g5818ffyfmfs1a924811azhjj8ax9xd1cffr1mzd3ycn0zfx7";
-    };
-    meta = {
-      license = [ { fullName = "ASL"; } pkgs.lib.licenses.asl20 ];
+      url = "https://files.pythonhosted.org/packages/4b/87/13e75a47b4ba1be06f29f6d807ca99638bedc6b57fa491cd3de891ca2923/cov-core-1.15.0.tar.gz";
+      sha256 = "0k3np9ymh06yv1ib96sb6wfsxjkqhmik8qfsn119vnhga9ywc52a";
     };
-  };
-  "gevent" = super.buildPythonPackage {
-    name = "gevent-1.5.0";
+    format = "setuptools";
     doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
     propagatedBuildInputs = [
-      self."greenlet"
+      self."coverage"
     ];
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/5a/79/2c63d385d017b5dd7d70983a463dfd25befae70c824fedb857df6e72eff2/gevent-1.5.0.tar.gz";
-      sha256 = "0aac3d4vhv5n4rsb6cqzq0d1xx9immqz4fmpddw35yxkwdc450dj";
-    };
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "gprof2dot" = super.buildPythonPackage {
-    name = "gprof2dot-2017.9.19";
-    doCheck = false;
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/9d/36/f977122502979f3dfb50704979c9ed70e6b620787942b089bf1af15f5aba/gprof2dot-2017.9.19.tar.gz";
-      sha256 = "17ih23ld2nzgc3xwgbay911l6lh96jp1zshmskm17n1gg2i7mg6f";
-    };
-    meta = {
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-  "greenlet" = super.buildPythonPackage {
-    name = "greenlet-0.4.15";
-    doCheck = false;
+  "coverage" = super.buildPythonPackage rec {
+    pname = "coverage";
+    version = "4.5.4";
     src = fetchurl {
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-    doCheck = false;
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-      sha256 = "1mna81cmzxxn7s2nwz3g1xgdjlcc1axkvfmwg7gjqghwn3pdraps";
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-    };
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-  "hupper" = super.buildPythonPackage {
-    name = "hupper-1.10.2";
+    format = "setuptools";
     doCheck = false;
-    src = fetchurl {
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-    propagatedBuildInputs = [
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-      sha256 = "07icyggasn38yv2swdrd8z6i0plazmc9adavsdkbqqj91j53ll9l";
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+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
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-  "ipdb" = super.buildPythonPackage {
-    name = "ipdb-0.13.2";
+  "cython" = super.buildPythonPackage rec {
+    pname = "cython";
+    version = "0.29.17";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/99/36/a3dc962cc6d08749aa4b9d85af08b6e354d09c5468a3e0edc610f44c856b/Cython-0.29.17.tar.gz";
+      sha256 = "1wnaz40hdw4mg5acz5gqb6bhjhn4cvfxg0xdzfy7aa6qn665hqb3";
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+    format = "setuptools";
     doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ pkgs.lib.licenses.asl20 { fullName = "Apache"; } ];
+    };
+  };
+  "decorator" = super.buildPythonPackage rec {
+    pname = "decorator";
+    version = "4.1.2";
+    src = fetchurl {
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+      sha256 = "1d8npb11kxyi36mrvjdpcjij76l5zfyrz2f820brf0l0rcw4vdkw";
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+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ pkgs.lib.licenses.bsdOriginal { fullName = "new BSD License"; } ];
+    };
+  };
+  "dogpile.cache" = super.buildPythonPackage rec {
+    pname = "dogpile.cache";
+    version = "0.9.0";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/ac/6a/9ac405686a94b7f009a20a50070a5786b0e1aedc707b88d40d0c4b51a82e/dogpile.cache-0.9.0.tar.gz";
+      sha256 = "0sr1fn6b4k5bh0cscd9yi8csqxvj4ngzildav58x5p694mc86j5k";
+    };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
     propagatedBuildInputs = [
-      self."setuptools"
-      self."ipython"
+      self."decorator"
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+    meta = {
+      license = [ pkgs.lib.licenses.bsdOriginal ];
+    };
+  };
+  "dogpile.core" = super.buildPythonPackage rec {
+    pname = "dogpile.core";
+    version = "0.4.1";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/0e/77/e72abc04c22aedf874301861e5c1e761231c288b5de369c18be8f4b5c9bb/dogpile.core-0.4.1.tar.gz";
+      sha256 = "0xpdvg4kr1isfkrh1rfsh7za4q5a5s6l2kf9wpvndbwf3aqjyrdy";
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+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ pkgs.lib.licenses.bsdOriginal ];
+    };
+  };
+  "dulwich" = super.buildPythonPackage rec {
+    pname = "dulwich";
+    version = "0.13.0";
     src = fetchurl {
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-      sha256 = "0jcd849rx30y3wcgzsqbn06v0yjlzvb9x3076q0yxpycdwm1ryvp";
+      url = "https://files.pythonhosted.org/packages/84/95/732d280eee829dacc954e8109f97b47abcadcca472c2ab013e1635eb4792/dulwich-0.13.0.tar.gz";
+      sha256 = "0f1jwvrh549c4rgavkn3wizrch904s73s4fmrxykxy9cw8s57lwf";
+    };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ pkgs.lib.licenses.gpl2Plus ];
     };
+  };
+  "enum34" = super.buildPythonPackage rec {
+    pname = "enum34";
+    version = "1.1.10";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/11/c4/2da1f4952ba476677a42f25cd32ab8aaf0e1c0d0e00b89822b835c7e654c/enum34-1.1.10.tar.gz";
+      sha256 = "0j7ji699fwswm4vg6w1v07fkbf8dkzdm6gfh88jvs5nqgr3sgrnc";
+    };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.bsdOriginal ];
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-  "ipython" = super.buildPythonPackage {
-    name = "ipython-5.1.0";
+  "funcsigs" = super.buildPythonPackage rec {
+    pname = "funcsigs";
+    version = "1.0.2";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/94/4a/db842e7a0545de1cdb0439bb80e6e42dfe82aaeaadd4072f2263a4fbed23/funcsigs-1.0.2.tar.gz";
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     doCheck = false;
-    propagatedBuildInputs = [
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+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ { fullName = "ASL"; } pkgs.lib.licenses.asl20 ];
+    };
+  };
+  "gevent" = super.buildPythonPackage rec {
+    pname = "gevent";
+    version = "1.5.0";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/5a/79/2c63d385d017b5dd7d70983a463dfd25befae70c824fedb857df6e72eff2/gevent-1.5.0.tar.gz";
+      sha256 = "0aac3d4vhv5n4rsb6cqzq0d1xx9immqz4fmpddw35yxkwdc450dj";
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+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [
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-      self."traitlets"
-      self."prompt-toolkit"
-      self."pygments"
-      self."pexpect"
-      self."backports.shutil-get-terminal-size"
+      self."wheel"
+      self."cython"
+      self."cffi"
+      self."greenlet"
+    ];
+    propagatedBuildInputs = [
+      self."greenlet"
+    ];
+    meta = {
+      license = [ pkgs.lib.licenses.mit ];
+    };
+  };
+  "gprof2dot" = super.buildPythonPackage rec {
+    pname = "gprof2dot";
+    version = "2017.9.19";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/9d/36/f977122502979f3dfb50704979c9ed70e6b620787942b089bf1af15f5aba/gprof2dot-2017.9.19.tar.gz";
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+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ { fullName = "GNU Lesser General Public License v3 or later (LGPLv3+)"; } { fullName = "LGPL"; } ];
+    };
+  };
+  "greenlet" = super.buildPythonPackage rec {
+    pname = "greenlet";
+    version = "0.4.15";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/f8/e8/b30ae23b45f69aa3f024b46064c0ac8e5fcb4f22ace0dca8d6f9c8bbe5e7/greenlet-0.4.15.tar.gz";
+      sha256 = "1g4g1wwc472ds89zmqlpyan3fbnzpa8qm48z3z1y6mlk44z485ll";
+    };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ pkgs.lib.licenses.mit ];
+    };
+  };
+  "gunicorn" = super.buildPythonPackage rec {
+    pname = "gunicorn";
+    version = "19.9.0";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/47/52/68ba8e5e8ba251e54006a49441f7ccabca83b6bef5aedacb4890596c7911/gunicorn-19.9.0.tar.gz";
+      sha256 = "1wzlf4xmn6qjirh5w81l6i6kqjnab1n1qqkh7zsj1yb6gh4n49ps";
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+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ pkgs.lib.licenses.mit ];
+    };
+  };
+  "hg-evolve" = super.buildPythonPackage rec {
+    pname = "hg-evolve";
+    version = "9.1.0";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/20/36/5a6655975aa0c663be91098d31a0b24841acad44fe896aa2bdee77c6b883/hg-evolve-9.1.0.tar.gz";
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+    };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ { fullName = "GPLv2+"; } ];
+    };
+  };
+  "hgsubversion" = super.buildPythonPackage rec {
+    pname = "hgsubversion";
+    version = "1.9.3";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/a3/53/6d205e641f3e09abcf1ddaed66e5e4b20da22d0145566d440a02c9e35f0d/hgsubversion-1.9.3.tar.gz";
+      sha256 = "0nymcjlch8c4zjbncrs30p2nrbylsf25g3h6mr0zzzxr141h3sig";
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+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [
+      self."mercurial"
+      self."subvertpy"
+    ];
+    meta = {
+      license = [ pkgs.lib.licenses.gpl1 ];
+    };
+  };
+  "hupper" = super.buildPythonPackage rec {
+    pname = "hupper";
+    version = "1.10.2";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/41/24/ea90fef04706e54bd1635c05c50dc9cf87cda543c59303a03e7aa7dda0ce/hupper-1.10.2.tar.gz";
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+    };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [
+      self."setuptools"
+      self."wheel"
+    ];
+    propagatedBuildInputs = [];
+    meta = {
+      license = [ pkgs.lib.licenses.mit ];
+    };
+  };
+  "importlib-metadata" = super.buildPythonPackage rec {
+    pname = "importlib-metadata";
+    version = "1.6.0";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/b4/1b/baab42e3cd64c9d5caac25a9d6c054f8324cdc38975a44d600569f1f7158/importlib_metadata-1.6.0.tar.gz";
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+    };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [
+      self."setuptools"
+      self."wheel"
+      self."setuptools-scm"
+    ];
+    propagatedBuildInputs = [
+      self."configparser"
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+      self."zipp"
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+    meta = {
+      license = [ pkgs.lib.licenses.asl20 ];
+    };
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+  "ipdb" = super.buildPythonPackage rec {
+    pname = "ipdb";
+    version = "0.13.2";
     src = fetchurl {
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+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [
+      self."ipython"
+      self."setuptools"
+    ];
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       license = [ pkgs.lib.licenses.bsdOriginal ];
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-  "ipython-genutils" = super.buildPythonPackage {
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+    version = "5.10.0";
+    src = fetchurl {
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+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [
+      self."backports.shutil-get-terminal-size"
+      self."decorator"
+      self."pathlib2"
+      self."pexpect"
+      self."pickleshare"
+      self."prompt-toolkit"
+      self."pygments"
+      self."setuptools"
+      self."simplegeneric"
+      self."traitlets"
+    ];
+    meta = {
+      license = [ pkgs.lib.licenses.bsdOriginal ];
+    };
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+  "ipython-genutils" = super.buildPythonPackage rec {
+    pname = "ipython-genutils";
+    version = "0.2.0";
     src = fetchurl {
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+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
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-  "mako" = super.buildPythonPackage {
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-  "mercurial" = super.buildPythonPackage {
-    name = "mercurial-5.1.1";
-    doCheck = false;
+  "mercurial" = super.buildPythonPackage rec {
+    pname = "mercurial";
+    version = "5.1.1";
     src = fetchurl {
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+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.gpl1 pkgs.lib.licenses.gpl2Plus ];
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-  "mock" = super.buildPythonPackage {
-    name = "mock-3.0.5";
-    doCheck = false;
-    propagatedBuildInputs = [
-      self."six"
-      self."funcsigs"
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+  "mock" = super.buildPythonPackage rec {
+    pname = "mock";
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+    version = "1.2.0";
     src = fetchurl {
       url = "https://files.pythonhosted.org/packages/7e/6f/40a9d43ac77cb51cb62be5b5662d170f43f8037bdc4eab56336c4ca92bb7/venusian-1.2.0.tar.gz";
       sha256 = "0ghyx66g8ikx9nx1mnwqvdcqm11i1vlq0hnvwl50s48bp22q5v34";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ { fullName = "BSD-derived (http://www.repoze.org/LICENSE.txt)"; } ];
     };
   };
-  "waitress" = super.buildPythonPackage {
-    name = "waitress-1.3.1";
-    doCheck = false;
+  "waitress" = super.buildPythonPackage rec {
+    pname = "waitress";
+    version = "1.3.1";
     src = fetchurl {
       url = "https://files.pythonhosted.org/packages/a6/e6/708da7bba65898e5d759ade8391b1077e49d07be0b0223c39f5be04def56/waitress-1.3.1.tar.gz";
       sha256 = "1iysl8ka3l4cdrr0r19fh1cv28q41mwpvgsb81ji7k4shkb0k3i7";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.zpl21 ];
     };
   };
-  "wcwidth" = super.buildPythonPackage {
-    name = "wcwidth-0.1.9";
-    doCheck = false;
+  "wcwidth" = super.buildPythonPackage rec {
+    pname = "wcwidth";
+    version = "0.1.9";
     src = fetchurl {
       url = "https://files.pythonhosted.org/packages/25/9d/0acbed6e4a4be4fc99148f275488580968f44ddb5e69b8ceb53fc9df55a0/wcwidth-0.1.9.tar.gz";
       sha256 = "1wf5ycjx8s066rdvr0fgz4xds9a8zhs91c4jzxvvymm1c8l8cwzf";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "webob" = super.buildPythonPackage {
-    name = "webob-1.8.5";
-    doCheck = false;
+  "webob" = super.buildPythonPackage rec {
+    pname = "webob";
+    version = "1.8.5";
     src = fetchurl {
       url = "https://files.pythonhosted.org/packages/9d/1a/0c89c070ee2829c934cb6c7082287c822e28236a4fcf90063e6be7c35532/WebOb-1.8.5.tar.gz";
       sha256 = "11khpzaxc88q31v25ic330gsf56fwmbdc9b30br8mvp0fmwspah5";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [];
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "webtest" = super.buildPythonPackage {
-    name = "webtest-2.0.34";
-    doCheck = false;
-    propagatedBuildInputs = [
-      self."six"
-      self."webob"
-      self."waitress"
-      self."beautifulsoup4"
-    ];
+  "webtest" = super.buildPythonPackage rec {
+    pname = "webtest";
+    version = "2.0.34";
     src = fetchurl {
       url = "https://files.pythonhosted.org/packages/2c/74/a0e63feee438735d628631e2b70d82280276a930637ac535479e5fad9427/WebTest-2.0.34.tar.gz";
       sha256 = "0x1y2c8z4fmpsny4hbp6ka37si2g10r5r2jwxhvv5mx7g3blq4bi";
     };
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
-  "zipp" = super.buildPythonPackage {
-    name = "zipp-1.2.0";
+    format = "setuptools";
     doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
     propagatedBuildInputs = [
-      self."contextlib2"
+      self."beautifulsoup4"
+      self."six"
+      self."waitress"
+      self."webob"
     ];
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/78/08/d52f0ea643bc1068d6dc98b412f4966a9b63255d20911a23ac3220c033c4/zipp-1.2.0.tar.gz";
-      sha256 = "1c91lnv1bxjimh8as27hz7bghsjkkbxn1d37xq7in9c82iai0167";
-    };
     meta = {
       license = [ pkgs.lib.licenses.mit ];
     };
   };
-  "zope.deprecation" = super.buildPythonPackage {
-    name = "zope.deprecation-4.4.0";
+  "zipp" = super.buildPythonPackage rec {
+    pname = "zipp";
+    version = "1.2.0";
+    src = fetchurl {
+      url = "https://files.pythonhosted.org/packages/78/08/d52f0ea643bc1068d6dc98b412f4966a9b63255d20911a23ac3220c033c4/zipp-1.2.0.tar.gz";
+      sha256 = "1c91lnv1bxjimh8as27hz7bghsjkkbxn1d37xq7in9c82iai0167";
+    };
+    format = "setuptools";
     doCheck = false;
-    propagatedBuildInputs = [
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [
       self."setuptools"
+      self."wheel"
+      self."setuptools-scm"
     ];
+    propagatedBuildInputs = [
+      self."contextlib2"
+    ];
+    meta = {
+      license = [ pkgs.lib.licenses.mit ];
+    };
+  };
+  "zope.deprecation" = super.buildPythonPackage rec {
+    pname = "zope.deprecation";
+    version = "4.4.0";
     src = fetchurl {
       url = "https://files.pythonhosted.org/packages/34/da/46e92d32d545dd067b9436279d84c339e8b16de2ca393d7b892bc1e1e9fd/zope.deprecation-4.4.0.tar.gz";
       sha256 = "1pz2cv7gv9y1r3m0bdv7ks1alagmrn5msm5spwdzkb2by0w36i8d";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [
+      self."setuptools"
+    ];
     meta = {
       license = [ pkgs.lib.licenses.zpl21 ];
     };
   };
-  "zope.interface" = super.buildPythonPackage {
-    name = "zope.interface-4.6.0";
-    doCheck = false;
-    propagatedBuildInputs = [
-      self."setuptools"
-    ];
+  "zope.interface" = super.buildPythonPackage rec {
+    pname = "zope.interface";
+    version = "4.6.0";
     src = fetchurl {
       url = "https://files.pythonhosted.org/packages/4e/d0/c9d16bd5b38de44a20c6dc5d5ed80a49626fafcb3db9f9efdc2a19026db6/zope.interface-4.6.0.tar.gz";
       sha256 = "1rgh2x3rcl9r0v0499kf78xy86rnmanajf4ywmqb943wpk50sg8v";
     };
+    format = "setuptools";
+    doCheck = false;
+    buildInputs = [];
+    checkInputs = [];
+    nativeBuildInputs = [];
+    propagatedBuildInputs = [
+      self."setuptools"
+    ];
     meta = {
       license = [ pkgs.lib.licenses.zpl21 ];
     };
   };
-
-### Test requirements
-
-  
 }
diff --git a/pkgs/shell-generate.nix b/pkgs/shell-generate.nix
--- a/pkgs/shell-generate.nix
+++ b/pkgs/shell-generate.nix
@@ -4,7 +4,11 @@
 
 with pkgs.lib;
 
-let _pythonPackages = pythonPackages; in
+let
+  _pythonPackages = pythonPackages;
+
+in
+
 let
   pythonPackages = getAttr _pythonPackages pkgs;
 
@@ -18,14 +22,24 @@ in
 
 pkgs.stdenv.mkDerivation {
   name = "pip2nix-generated";
+
   buildInputs = [
+    # Allows to generate python packages
     pip2nix.pip2nix
     pythonPackages.pip-tools
+    # compile using ffi
+    pkgs.libffi
+
     pkgs.apr
     pkgs.aprutil
-    pkgs.libffi
   ];
 
+  LC_ALL = "en_US.UTF-8";
+  LOCALE_ARCHIVE =
+    if pkgs.stdenv.isLinux
+    then "${pkgs.glibcLocales}/lib/locale/locale-archive"
+    else "";
+
   shellHook = ''
     runHook preShellHook
     echo "Setting SVN_* variables"
@@ -36,7 +50,14 @@ pkgs.stdenv.mkDerivation {
 
   preShellHook = ''
     echo "Starting Generate Shell"
+    # set unpack source date to 1980 to fix ZIP problems that does not support <1980
+    export SOURCE_DATE_EPOCH=315532800
+    export TMPDIR=/tmp
+
     # Custom prompt to distinguish from other dev envs.
-    export PS1="\n\[\033[1;32m\][Generate-shell:\w]$\[\033[0m\] "
+    export PS1="\n\[\033[1;32m\][pip2nix-generate-shell]$\[\033[0m\] "
+
+    export PYCURL_SSL_LIBRARY=openssl
+
   '';
 }
diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,14 +9,12 @@ decorator==4.1.2
 dulwich==0.13.0
 hgsubversion==1.9.3
 hg-evolve==9.1.0
-mako==1.1.0
-markupsafe==1.1.1
+
 mercurial==5.1.1
 msgpack-python==0.5.6
 
 pastedeploy==2.1.0
 pyramid==1.10.4
-pyramid-mako==1.1.0
 pygit2==0.28.2
 
 repoze.lru==0.7
@@ -39,7 +37,7 @@ waitress==1.3.1
 
 ## debug
 ipdb==0.13.2
-ipython==5.1.0
+ipython==5.10.0
 
 ## test related requirements
 -r requirements_test.txt
diff --git a/requirements_pinned.txt b/requirements_pinned.txt
--- a/requirements_pinned.txt
+++ b/requirements_pinned.txt
@@ -1,6 +1,6 @@
 # contains not directly required libraries we want to pin the version.
 
-atomicwrites==1.3.0
+atomicwrites==1.4.0
 attrs==19.3.0
 contextlib2==0.6.0.post1
 cffi==1.12.3
@@ -16,3 +16,6 @@ scandir==1.10.0
 setproctitle==1.1.10
 venusian==1.2.0
 wcwidth==0.1.9
+
+# ptyprocess backport, pypi version doesn't support egg/source installs on python 2.X
+https://code.rhodecode.com/upstream/ptyprocess/artifacts/download/0-c8b019b1-c4d3-46ac-a0ad-1206ec3fb3cb.tar.gz?sha256=50394f2c5e117fcab4360bf99c8bc40be7211ee1a5860aeb3809b44249550c3e#egg=ptyprocess==0.6.0.rhodecode-upstream1
diff --git a/requirements_test.txt b/requirements_test.txt
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,9 +1,9 @@
 # test related requirements
-pytest==4.6.5
-py==1.8.0
-pytest-cov==2.7.1
-pytest-sugar==0.9.2
-pytest-runner==5.1.0
+pytest==4.6.9
+py==1.8.1
+pytest-cov==2.8.1
+pytest-sugar==0.9.3
+pytest-runner==5.2.0
 pytest-profiling==1.7.0
 pytest-timeout==1.3.3
 gprof2dot==2017.9.19
diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,6 @@ except ImportError:  # for pip <= 9.0.3
     from pip.download import PipSession
 
 
-
 if sys.version_info < (2, 7):
     raise Exception('VCSServer requires Python 2.7 or later')
 
@@ -113,7 +112,7 @@ setup(
     keywords=keywords,
     license=__license__,
     author=__author__,
-    author_email='admin@rhodecode.com',
+    author_email='support@rhodecode.com',
     url=__url__,
     setup_requires=setup_requirements,
     install_requires=install_requirements,
diff --git a/shell.nix b/shell.nix
--- a/shell.nix
+++ b/shell.nix
@@ -15,7 +15,7 @@ let
 
   vcs-pythonPackages = vcsserver.pythonPackages;
 
-in vcsserver.override (attrs: {
+in vcsserver.override (attrs: rec {
   # Avoid that we dump any sources into the store when entering the shell and
   # make development a little bit more convenient.
   src = null;
@@ -32,7 +32,6 @@ in vcsserver.override (attrs: {
     attrs.propagatedBuildInputs ++
     [];
 
-
   # Make sure we execute both hooks
   shellHook = ''
     runHook preShellHook
@@ -40,17 +39,18 @@ in vcsserver.override (attrs: {
   '';
 
   preShellHook = ''
-    echo "Entering VCS-Shell"
+    echo "Entering vcsserver-shell"
 
     # Custom prompt to distinguish from other dev envs.
-    export PS1="\n\[\033[1;32m\][VCS-shell:\w]$\[\033[0m\] "
+    export PS1="\n\[\033[1;32m\][vcsserver-shell:\w]$\[\033[0m\] "
 
     # Set locale
+    export LOCALE_ARCHIVE="${pkgs.glibcLocales}/lib/locale/locale-archive"
     export LC_ALL="en_US.UTF-8"
 
     # Setup a temporary directory.
     tmp_path=$(mktemp -d)
-    export PATH="$tmp_path/bin:$PATH"
+    export PATH="${pkgs.subversion}/bin:${pkgs.git}/bin:${vcs-pythonPackages.mercurial}/bin:$tmp_path/bin:$PATH"
     export PYTHONPATH="$tmp_path/${vcs-pythonPackages.python.sitePackages}:$PYTHONPATH"
     mkdir -p $tmp_path/${vcs-pythonPackages.python.sitePackages}