pkgs/development/python2-modules/pyparsing/default.nix

   1 {
   2   buildPythonPackage,
   3   fetchFromGitHub,
   4   lib,
   5
   6   # since this is a dependency of pytest, we need to avoid
   7   # circular dependencies
   8   jinja2,
   9   railroad-diagrams,
  10 }:
  11
  12 let
  13   pyparsing = buildPythonPackage rec {
  14     pname = "pyparsing";
  15     version = "2.4.7";
  16
  17     src = fetchFromGitHub {
  18       owner = "pyparsing";
  19       repo = pname;
  20       rev = "pyparsing_${version}";
  21       sha256 = "14pfy80q2flgzjcx8jkracvnxxnr59kjzp3kdm5nh232gk1v6g6h";
  22     };
  23
  24     # circular dependencies if enabled by default
  25     doCheck = false;
  26     nativeCheckInputs = [
  27       jinja2
  28       railroad-diagrams
  29     ];
  30
  31     checkPhase = ''
  32       python -m unittest
  33     '';
  34
  35     passthru.tests = {
  36       check = pyparsing.overridePythonAttrs (_: {
  37         doCheck = true;
  38       });
  39     };
  40
  41     meta = with lib; {
  42       homepage = "https://github.com/pyparsing/pyparsing";
  43       description = "Alternative approach to creating and executing simple grammars, vs. the traditional lex/yacc approach, or the use of regular expressions";
  44       license = licenses.mit;
  45     };
  46   };
  47 in
  48 pyparsing