From ab7a7701682074e2f074c3195fcb138305db8f0e Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Tue, 29 Nov 2022 22:02:21 +0100
Subject: [PATCH] Synapse on Nix works great

---
 cluster/staging/app/im/deploy/flake.nix       | 115 +++++-
 cluster/staging/app/im/deploy/im-nix.hcl      |  47 ++-
 .../staging/app/im/deploy/python-packages.nix | 338 ------------------
 3 files changed, 133 insertions(+), 367 deletions(-)
 delete mode 100644 cluster/staging/app/im/deploy/python-packages.nix

diff --git a/cluster/staging/app/im/deploy/flake.nix b/cluster/staging/app/im/deploy/flake.nix
index 180e91b..e5f260d 100644
--- a/cluster/staging/app/im/deploy/flake.nix
+++ b/cluster/staging/app/im/deploy/flake.nix
@@ -6,34 +6,121 @@
 
   outputs = { self, nixpkgs }:
   let
+    # Generated with the help of pip2nix 0.8.0.dev1
+    # See https://github.com/nix-community/pip2nix
+    pypkgsOverlay = pkgs: self: super: {
+      "pyyaml" = super.buildPythonPackage rec {
+        pname = "pyyaml";
+        version = "5.4.1";
+        src = builtins.fetchurl {
+          url = "https://files.pythonhosted.org/packages/a0/a4/d63f2d7597e1a4b55aa3b4d6c5b029991d3b824b5bd331af8d4ab1ed687d/PyYAML-5.4.1.tar.gz";
+          sha256 = "0pm440pmpvgv5rbbnm8hk4qga5a292kvlm1bh3x2nwr8pb5p8xv0";
+        };
+        format = "setuptools";
+        doCheck = false;
+        buildInputs = [];
+        checkInputs = [];
+        nativeBuildInputs = [];
+        propagatedBuildInputs = [];
+      };
+      "humanize" = super.buildPythonPackage rec {
+        pname = "humanize";
+        version = "0.5.1";
+        src = builtins.fetchurl {
+          url = "https://files.pythonhosted.org/packages/8c/e0/e512e4ac6d091fc990bbe13f9e0378f34cf6eecd1c6c268c9e598dcf5bb9/humanize-0.5.1.tar.gz";
+          sha256 = "06dvhm3k8lf2rayn1gxbd46y0fy1db26m3h9vrq7rb1ib08mfgx4";
+        };
+        format = "setuptools";
+        doCheck = false;
+        buildInputs = [];
+        checkInputs = [];
+        nativeBuildInputs = [];
+        propagatedBuildInputs = [];
+      };
+      "synapse-s3-storage-provider" = super.buildPythonPackage rec {
+        pname = "synapse-s3-storage-provider";
+        version = "1.1.2";
+        src = builtins.fetchurl {
+          url = "https://github.com/matrix-org/synapse-s3-storage-provider/archive/refs/tags/v1.1.2.zip";
+          sha256 = "0xd5icfvnvdd3qadlsmqvj2qjm6rsvk1vbpiycdc7ypr9dp7x9z8";
+        };
+        format = "setuptools";
+        doCheck = false;
+        buildInputs = [];
+        checkInputs = [];
+        nativeBuildInputs = [
+          pkgs."unzip"
+        ];
+        propagatedBuildInputs = [
+          self."pyyaml"
+          self."twisted"
+          self."boto3"
+          self."botocore"
+          self."humanize"
+          self."psycopg2"
+          self."tqdm"
+        ];
+      };
+    };
     pkgs = import nixpkgs {
       system = "x86_64-linux";
-    };
-    pypkgsOverlay = import ./python-packages.nix {
-      inherit pkgs;
-      fetchurl = builtins.fetchurl;
-      fetchgit = pkgs.fetchgit;
-      fetchhg = pkgs.fetchhg;
-    };
-    pkgs2 = import nixpkgs {
-      system = "x86_64-linux";
       overlays = [
         (self: super: {
           python3 = super.python3.override {
             self = self.python3;
-            packageOverrides = pypkgsOverlay;
+            packageOverrides = (pypkgsOverlay super);
           };
         })
       ];
     };
-    synapseWithS3 = pkgs2.matrix-synapse.overridePythonAttrs (old: rec {
+
+    synapse = pkgs.matrix-synapse.overridePythonAttrs (old: rec {
       propagatedBuildInputs = old.propagatedBuildInputs ++ [
-        pkgs2.python3.pkgs.synapse-s3-storage-provider
+        pkgs.python3.pkgs.synapse-s3-storage-provider
       ];
     });
+
+    s3_provider = pkgs.python3.withPackages(ps: [ps.synapse-s3-storage-provider]);
+
+    matrix_s3_async = pkgs.writeScriptBin "matrix-s3-async" ''
+#!${pkgs.bash}/bin/bash
+
+${pkgs.coreutils}/bin/cat > database.yaml <<EOF
+user: ''$PG_USER
+password: ''$PG_PASS
+database: ''$PG_DB
+host: ''$PG_HOST
+port: ''$PG_PORT
+EOF
+
+while true; do
+  ${s3_provider}/bin/s3_media_upload update-db 0d
+  ${s3_provider}/bin/s3_media_upload --no-progress check-deleted ''$SYNAPSE_MEDIA_STORE
+  ${s3_provider}/bin/s3_media_upload --no-progress upload ''$SYNAPSE_MEDIA_STORE ''$SYNAPSE_MEDIA_S3_BUCKET --delete --endpoint-url ''$S3_ENDPOINT
+  ${pkgs.coreutils}/bin/sleep 600
+done
+      '';
+
+    matrix_s3_async_sqlite = pkgs.writeScriptBin "matrix-s3-async-sqlite" ''
+#!${pkgs.bash}/bin/bash
+
+${pkgs.coreutils}/bin/cat > database.yaml <<EOF
+sqlite:
+  database: ''$SYNAPSE_SQLITE_DB
+EOF
+
+while true; do
+  ${s3_provider}/bin/s3_media_upload update-db 0d
+  ${s3_provider}/bin/s3_media_upload --no-progress check-deleted ''$SYNAPSE_MEDIA_STORE
+  ${s3_provider}/bin/s3_media_upload --no-progress upload ''$SYNAPSE_MEDIA_STORE ''$SYNAPSE_MEDIA_S3_BUCKET --delete --endpoint-url ''$S3_ENDPOINT
+  ${pkgs.coreutils}/bin/sleep 600
+done
+      '';
+
   in
   {
-    packages.x86_64-linux.default = synapseWithS3;
-    #packages.x86_64-linux.default = pkgs2.python3.pkgs.synapse-s3-storage-provider;
+    packages.x86_64-linux = {
+      inherit synapse s3_provider matrix_s3_async matrix_s3_async_sqlite;
+    };
   };
 }
diff --git a/cluster/staging/app/im/deploy/im-nix.hcl b/cluster/staging/app/im/deploy/im-nix.hcl
index 7f53136..9cf78e5 100644
--- a/cluster/staging/app/im/deploy/im-nix.hcl
+++ b/cluster/staging/app/im/deploy/im-nix.hcl
@@ -7,7 +7,7 @@ job "im" {
 
     network {
       port "http" {
-        to = 8008
+        static = 8008
       }
     }
 
@@ -39,7 +39,7 @@ job "im" {
           ]
         command = "litestream"
         args = [
-          "restore", "-config", "/etc/litestream.yml", "/ephemeral/homeserver.db", "-v"
+          "restore", "-v", "-config", "/etc/litestream.yml", "/ephemeral/homeserver.db"
         ]
         bind = {
           "../alloc/data" = "/ephemeral",
@@ -63,9 +63,11 @@ job "im" {
     task "synapse" {
       driver = "nix2"
       config {
-        nixpkgs = "github:nixos/nixpkgs/ce6aa13369b667ac2542593170993504932eb836"
         packages = [
-          ".",
+          "#cacert",
+          "#bash",
+          "#coreutils",
+          ".#synapse",
         ]
         command = "synapse_homeserver"
         args = [
@@ -77,16 +79,15 @@ job "im" {
           "../alloc/data" = "/ephemeral",
         }
       }
+      env = {
+        SSL_CERT_FILE = "/etc/ssl/certs/ca-bundle.crt"
+      }
       user = "root"
 
       template {
         data = file("flake.nix")
         destination = "flake.nix"
       }
-      template {
-        data = file("python-packages.nix")
-        destination = "python-packages.nix"
-      }
       template {
         data = file("flake.lock")
         destination = "flake.lock"
@@ -130,16 +131,32 @@ job "im" {
     }
 
     task "media-async-upload" {
-      driver = "docker"
+      driver = "nix2"
 
       config {
-        image = "lxpz/amd64_synapse:1.49.2-4"
-        readonly_rootfs = true
-        command = "/usr/local/bin/matrix-s3-async-sqlite"
-        work_dir = "/ephemeral"
-        volumes = [
-          "../alloc/data:/ephemeral",
+        packages = [
+          "#bash",
+          "#coreutils",
+          ".#matrix_s3_async_sqlite",
         ]
+        command = "sh"
+        args = [
+          "-c",
+          "cd /ephemeral; matrix-s3-async-sqlite"
+        ]
+        bind = {
+          "../alloc/data" = "/ephemeral",
+        }
+      }
+      user = "root"
+
+      template {
+        data = file("flake.nix")
+        destination = "flake.nix"
+      }
+      template {
+        data = file("flake.lock")
+        destination = "flake.lock"
       }
 
       resources {
diff --git a/cluster/staging/app/im/deploy/python-packages.nix b/cluster/staging/app/im/deploy/python-packages.nix
deleted file mode 100644
index 92a37be..0000000
--- a/cluster/staging/app/im/deploy/python-packages.nix
+++ /dev/null
@@ -1,338 +0,0 @@
-# Generated by pip2nix 0.8.0.dev1
-# See https://github.com/nix-community/pip2nix
-
-{ pkgs, fetchurl, fetchgit, fetchhg }:
-
-self: super: {
-  # "Automat" = super.buildPythonPackage rec {
-  #   pname = "Automat";
-  #   version = "22.10.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/29/90/64aabce6c1b820395452cc5472b8f11cd98320f40941795b8069aef4e0e0/Automat-22.10.0-py2.py3-none-any.whl";
-  #     sha256 = "1021ns3f579zaccd03blf4zvayzzm8r2sj426q7l9p5r8a3ly5n3";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."attrs"
-  #     self."six"
-  #   ];
-  # };
-  "pyyaml" = super.buildPythonPackage rec {
-    pname = "pyyaml";
-    version = "5.4.1";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/a0/a4/d63f2d7597e1a4b55aa3b4d6c5b029991d3b824b5bd331af8d4ab1ed687d/PyYAML-5.4.1.tar.gz";
-      sha256 = "0pm440pmpvgv5rbbnm8hk4qga5a292kvlm1bh3x2nwr8pb5p8xv0";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [];
-  };
-  # "Twisted" = super.buildPythonPackage rec {
-  #   pname = "Twisted";
-  #   version = "22.10.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/ac/63/b5540d15dfeb7388fbe12fa55a902c118fd2b324be5430cdeac0c0439489/Twisted-22.10.0-py3-none-any.whl";
-  #     sha256 = "1l6brjpq0h3ldl4pkw6lcq7l1w344hsh69g0cinnzay55iqmzic6";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."Automat"
-  #     self."attrs"
-  #     self."constantly"
-  #     self."hyperlink"
-  #     self."incremental"
-  #     self."typing-extensions"
-  #     self."zope.interface"
-  #   ];
-  # };
-  # "attrs" = super.buildPythonPackage rec {
-  #   pname = "attrs";
-  #   version = "22.1.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/f2/bc/d817287d1aa01878af07c19505fafd1165cd6a119e9d0821ca1d1c20312d/attrs-22.1.0-py2.py3-none-any.whl";
-  #     sha256 = "072mv8qgvas8sagx7f021l9yrca6ry3m8cqsylsdzwkvyq1a9vw6";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  # "boto3" = super.buildPythonPackage rec {
-  #   pname = "boto3";
-  #   version = "1.26.18";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/d1/16/c16895c1dc416ce332d48aa9442123fbe42e714266a93a826dc034d16522/boto3-1.26.18-py3-none-any.whl";
-  #     sha256 = "05y504z3lxybms0plmay36fn9pdrjl7z17nlhbfmyahii6qqhg4k";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."botocore"
-  #     self."jmespath"
-  #     self."s3transfer"
-  #   ];
-  # };
-  # "botocore" = super.buildPythonPackage rec {
-  #   pname = "botocore";
-  #   version = "1.29.18";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/cc/13/fcc5221a782f81b07aeb5fca676e07a2a2f2b250804763c89d1a66a17395/botocore-1.29.18-py3-none-any.whl";
-  #     sha256 = "14ir4ydx13f45w22g9f10wrq8yidbscg54yg28x6vb3f7d1l9fia";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."jmespath"
-  #     self."python-dateutil"
-  #     self."urllib3"
-  #   ];
-  # };
-  # "constantly" = super.buildPythonPackage rec {
-  #   pname = "constantly";
-  #   version = "15.1.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/b9/65/48c1909d0c0aeae6c10213340ce682db01b48ea900a7d9fce7a7910ff318/constantly-15.1.0-py2.py3-none-any.whl";
-  #     sha256 = "0pbwnc78hi3y7gizcjrqdqbslij0fcyjjxnxszq866m5n7bajbyx";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  "humanize" = super.buildPythonPackage rec {
-    pname = "humanize";
-    version = "0.5.1";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/8c/e0/e512e4ac6d091fc990bbe13f9e0378f34cf6eecd1c6c268c9e598dcf5bb9/humanize-0.5.1.tar.gz";
-      sha256 = "06dvhm3k8lf2rayn1gxbd46y0fy1db26m3h9vrq7rb1ib08mfgx4";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [];
-  };
-  # "hyperlink" = super.buildPythonPackage rec {
-  #   pname = "hyperlink";
-  #   version = "21.0.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/6e/aa/8caf6a0a3e62863cbb9dab27135660acba46903b703e224f14f447e57934/hyperlink-21.0.0-py2.py3-none-any.whl";
-  #     sha256 = "1d7ibbr81vglky0kynswi2dbagwgrk1b9kbqgp3qjgmpxhvlrcg6";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."idna"
-  #   ];
-  # };
-  # "idna" = super.buildPythonPackage rec {
-  #   pname = "idna";
-  #   version = "3.4";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/fc/34/3030de6f1370931b9dbb4dad48f6ab1015ab1d32447850b9fc94e60097be/idna-3.4-py3-none-any.whl";
-  #     sha256 = "1hn54ps4kgv2fmyvfaks38sgrvjc1cn4834sh7gadsx3x9wpxdwh";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  # "incremental" = super.buildPythonPackage rec {
-  #   pname = "incremental";
-  #   version = "22.10.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/77/51/8073577012492fcd15628e811db585f447c500fa407e944ab3a18ec55fb7/incremental-22.10.0-py2.py3-none-any.whl";
-  #     sha256 = "0l9yiml04ri84z7wm5ckig1ak2pyp1hsfd98mk2p5vl513rs2r5q";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  # "jmespath" = super.buildPythonPackage rec {
-  #   pname = "jmespath";
-  #   version = "1.0.1";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/31/b4/b9b800c45527aadd64d5b442f9b932b00648617eb5d63d2c7a6587b7cafc/jmespath-1.0.1-py3-none-any.whl";
-  #     sha256 = "10194nk0641vz2kpy442dsgdv44ia43zksrf6f4apg5mf76f9qh2";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  # "psycopg2" = super.buildPythonPackage rec {
-  #   pname = "psycopg2";
-  #   version = "2.9.5";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/89/d6/cd8c46417e0f7a16b4b0fc321f4ab676a59250d08fce5b64921897fb07cc/psycopg2-2.9.5.tar.gz";
-  #     sha256 = "0ni4kq6p7hbkm2qsky998q36q5gq5if4nwd8hwhjx5rsd0p6s955";
-  #   };
-  #   format = "setuptools";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [ pkgs.postgresql ];
-  #   propagatedBuildInputs = [];
-  # };
-  # "python-dateutil" = super.buildPythonPackage rec {
-  #   pname = "python-dateutil";
-  #   version = "2.8.2";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/36/7a/87837f39d0296e723bb9b62bbb257d0355c7f6128853c78955f57342a56d/python_dateutil-2.8.2-py2.py3-none-any.whl";
-  #     sha256 = "1aaxjfp4lrz8c6qls3vdhw554lan3khy9afyvdcvrssk6kf067cn";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."six"
-  #   ];
-  # };
-  # "s3transfer" = super.buildPythonPackage rec {
-  #   pname = "s3transfer";
-  #   version = "0.6.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/5e/c6/af903b5fab3f9b5b1e883f49a770066314c6dcceb589cf938d48c89556c1/s3transfer-0.6.0-py3-none-any.whl";
-  #     sha256 = "1kayip95pym87m33l4s7fq5h8aa4kb11ynpjnkqn2px1yds6n5q6";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."botocore"
-  #   ];
-  # };
-  # "six" = super.buildPythonPackage rec {
-  #   pname = "six";
-  #   version = "1.16.0";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/d9/5a/e7c31adbe875f2abbb91bd84cf2dc52d792b5a01506781dbcf25c91daf11/six-1.16.0-py2.py3-none-any.whl";
-  #     sha256 = "0m02dsi8lvrjf4bi20ab6lm7rr6krz7pg6lzk3xjs2l9hqfjzfwa";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  "synapse-s3-storage-provider" = super.buildPythonPackage rec {
-    pname = "synapse-s3-storage-provider";
-    version = "1.1.2";
-    src = fetchurl {
-      url = "https://github.com/matrix-org/synapse-s3-storage-provider/archive/refs/tags/v1.1.2.zip";
-      sha256 = "0xd5icfvnvdd3qadlsmqvj2qjm6rsvk1vbpiycdc7ypr9dp7x9z8";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [
-      pkgs."unzip"
-    ];
-    propagatedBuildInputs = [
-      self."pyyaml"
-      self."twisted" # Twisted
-      self."boto3"
-      self."botocore"
-      self."humanize"
-      self."psycopg2"
-      self."tqdm"
-    ];
-  };
-  # "tqdm" = super.buildPythonPackage rec {
-  #   pname = "tqdm";
-  #   version = "4.64.1";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/47/bb/849011636c4da2e44f1253cd927cfb20ada4374d8b3a4e425416e84900cc/tqdm-4.64.1-py2.py3-none-any.whl";
-  #     sha256 = "18d68ickjbf5jb73aqvj0722p0r2kj14rwb5ik3b3lgwdw6idvkg";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  #"typing-extensions" = super.buildPythonPackage rec {
-  #  pname = "typing-extensions";
-  #  version = "4.4.0";
-  #  src = fetchurl {
-  #    url = "https://files.pythonhosted.org/packages/0b/8e/f1a0a5a76cfef77e1eb6004cb49e5f8d72634da638420b9ea492ce8305e8/typing_extensions-4.4.0-py3-none-any.whl";
-  #    sha256 = "17j8jbywq5cjgh6354wyh9y47cvrbyw1hqj9xhsmsrcg81j4iyhn";
-  #  };
-  #  format = "wheel";
-  #  doCheck = false;
-  #  buildInputs = [];
-  #  checkInputs = [];
-  #  nativeBuildInputs = [];
-  #  propagatedBuildInputs = [];
-  #};
-  # "urllib3" = super.buildPythonPackage rec {
-  #   pname = "urllib3";
-  #   version = "1.26.13";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/65/0c/cc6644eaa594585e5875f46f3c83ee8762b647b51fc5b0fb253a242df2dc/urllib3-1.26.13-py2.py3-none-any.whl";
-  #     sha256 = "1z21pgc451h1qcx1g74wnmj4wddswxh9p06m5vkwj2dakbchbk27";
-  #   };
-  #   format = "wheel";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [];
-  # };
-  # "zope.interface" = super.buildPythonPackage rec {
-  #   pname = "zope.interface";
-  #   version = "5.5.2";
-  #   src = fetchurl {
-  #     url = "https://files.pythonhosted.org/packages/38/6f/fbfb7dde38be7e5644bb342c4c7cdc444cd5e2ffbd70d091263b3858a8cb/zope.interface-5.5.2.tar.gz";
-  #     sha256 = "0wg6vicx14bkmvfy19dcz5ch5apklywgaj73k6a82hr1yqzizvmz";
-  #   };
-  #   format = "setuptools";
-  #   doCheck = false;
-  #   buildInputs = [];
-  #   checkInputs = [];
-  #   nativeBuildInputs = [];
-  #   propagatedBuildInputs = [
-  #     self."setuptools"
-  #   ];
-  # };
-}