anchor.diff:    watchdog,
   }:
   
  -let
  -  click_7 = click.overridePythonAttrs(old: rec {
  -    version = "7.1.2";
  -    src = old.src.override {
  -      inherit version;
  -      sha256 = "d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a";
  -    };
  -  });
  -in buildPythonApplication rec {
  +buildPythonApplication rec {
     pname = "streamlit";
  -  version = "1.2.0";
  -  format = "wheel"; # the only distribution available
  +  version = "1.11.1";
  +  format = "wheel";  # source currently requires pipenv
   
     src = fetchPypi {
       inherit pname version format;
  -    sha256 = "1dzb68a8n8wvjppcmqdaqnh925b2dg6rywv51ac9q09zjxb6z11n";
  +    hash = "sha256-+GGuL3UngPDgLOGx9QXUdRJsTswhTg7d6zuvhpp0Mo0=";
     };
   
     propagatedBuildInputs = [
       altair
  -    astor
  -    base58
       blinker
  -    boto3
  -    botocore
       cachetools
  -    click_7
  -    enum-compat
  -    future
  +    click
       GitPython
  +    importlib-metadata
       jinja2
       pillow
       protobuf
  
positive.code:     pydeck
      pympler
      requests
      setuptools
      toml
      tornado
  
negative.code: 
    # Build inputs
    altair,
    blinker,
    click,
    cachetools,
    GitPython,
    importlib-metadata,
    jinja2,
    pillow,
    pyarrow,
  