tahoe-lafs: pin magic-wormhole to version 0.18.0

{

  lib,

  python3Packages,

  python3,

  fetchFromGitHub,

  texinfo,

  versionCheckHook,

}:

let

  python = python3.override {

    self = python;

    packageOverrides = self: super: {

      # tahoe-lafs is incompatible with magic-wormhole >= 0.19.0

      # TODO: unpin, when https://tahoe-lafs.org/trac/tahoe-lafs/ticket/4180 is fixed

      magic-wormhole = super.magic-wormhole.overridePythonAttrs (oldAttrs: rec {

        version = "0.18.0";

        src = fetchFromGitHub {

          owner = "magic-wormhole";

          repo = "magic-wormhole";

          tag = version;

          hash = "sha256-FQ7m6hkJcFZaE+ptDALq/gijn/RcAM1Zvzi2+xpoXBU=";

        };

        nativeCheckInputs = lib.filter (

          input: (input.pname or null) != "pytest-twisted"

        ) oldAttrs.nativeCheckInputs;

        pytestFlagsArray = null;

      });

    };

  };

  python3Packages = python.pkgs;

in

python3Packages.buildPythonApplication rec {

  pname = "tahoe-lafs";

  version = "1.20.0";