pythonPackages.websocket_client: 0.54.0 -> 0.56.0 and fix directory

pkgs/development/python-modules/websocket_client/default.nix

@@ -0,0 +1,25 @@
+{ lib, buildPythonPackage, fetchPypi, isPy27
+, six
+, backports_ssl_match_hostname
+}:
+
+buildPythonPackage rec {
+  version = "0.56.0";
+  pname = "websocket_client";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0fpxjyr74klnyis3yf6m54askl0h5dchxcwbfjsq92xng0455m8z";
+  };
+
+  propagatedBuildInputs = [
+    six
+  ] ++ lib.optional isPy27 backports_ssl_match_hostname;
+
+  meta = with lib; {
+    description = "Websocket client for python";
+    homepage = "https://github.com/websocket-client/websocket-client";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ ];
+  };
+}