{ lib, buildPythonPackage, fetchPypi, chardet, hypothesis }:

buildPythonPackage rec {
  pname = "binaryornot";
  version = "0.4.4";

  src = fetchPypi {
    inherit pname version;
    sha256 = "359501dfc9d40632edc9fac890e19542db1a287bbcfa58175b66658392018061";
  };

  prePatch = ''
    # See https://github.com/audreyr/binaryornot/issues/40
    substituteInPlace tests/test_check.py \
      --replace "average_size=512" "average_size=128"
  '';

  propagatedBuildInputs = [ chardet ];

  checkInputs = [ hypothesis ];

  meta = with lib; {
    homepage = https://github.com/audreyr/binaryornot;
    description = "Ultra-lightweight pure Python package to check if a file is binary or text";
    license = licenses.bsd3;
  };
}