anchor.diff:  { lib
   , stdenv
  +, aiohttp
   , buildPythonPackage
   , fetchFromGitHub
  +, numpy
  +, paramiko
  +, pytest-asyncio
  +, pytest-mock
  +, pytest-vcr
  +, pytestCheckHook
   , pythonOlder
  -, pytestCheckHook
  -, numpy
  -, aiohttp
  -, pytest-vcr
  -, pytest-mock
  -, pytest-asyncio
   , requests
  -, paramiko
   , smbprotocol
  +, tqdm
   }:
   
   buildPythonPackage rec {
     pname = "fsspec";
  -  version = "2022.3.0";
  -  disabled = pythonOlder "3.6";
  +  version = "2022.5.0";
  +  format = "setuptools";
  +
  +  disabled = pythonOlder "3.7";
   
     src = fetchFromGitHub {
       owner = "intake";
       repo = "filesystem_spec";
       rev = version;
  -    sha256 = "sha256-jTF8R0kaHMsCYg+7YFi21Homn63K+ulp9NDZC/jkIXM=";
  +    hash = "sha256-WOzw9UPF8LZuOhp5p/CJUUJcYpAfixV6GiI8tfnoklc=";
     };
   
     propagatedBuildInputs = [
  
positive.code:     paramiko
      requests
      smbprotocol
    ];
  
    checkInputs = [
      numpy
      pytest-vcr
      pytest-mock
      pytest-asyncio
      pytestCheckHook
    ];
  
  
negative.code:     "test_touch"
    ];
  
    pythonImportsCheck = [
      "fsspec"
    ];
  
    meta = with lib; {
      description = "A specification that Python filesystems should adhere to";
      homepage = "https://github.com/intake/filesystem_spec";
      changelog = "https://github.com/fsspec/filesystem_spec/raw/${version}/docs/source/changelog.rst";
      license = licenses.bsd3;
      maintainers = with maintainers; [ costrouc ];
    };
  }
  