python3.packages.pyshark: fix build with wireshark4

due to the update of wireshark 3.6.5 -> 4.0.1 the tests
fail for pyshark due to a change in wireshark. This applies an
upstream patch and adds the wireshark dependency to pyshark's
propagatedBuildInputs. Otherwise one would have to add wireshark
manually to the environment. pyshark won't work without wireshark.

Signed-off-by: Florian Brandes <florian.brandes@posteo.de>

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

@@ -1,5 +1,6 @@
 { lib
 , buildPythonPackage
+, fetchpatch
 , fetchFromGitHub
 , appdirs
 , lxml
@@ -24,34 +25,36 @@ buildPythonPackage rec {
     hash = "sha256-byll2GWY2841AAf8Xh+KfaCOtMGVKabTsLCe3gCdZ1o=";
   };
 
+  patches = [
+    (fetchpatch {
+      name = "fix-mapping.patch";
+      url =
+        "https://github.com/KimiNewt/pyshark/pull/608/commits/c2feb17ef621390481d6acc29dbf807d6851ed4c.patch";
+      hash = "sha256-TY09HPxqJP3zI8+ugm518aMuBgog7wrXs5uoReHHaEI=";
+    })
+  ];
+
+  # `stripLen` does not seem to work here
+  patchFlags = "-p2";
+
   sourceRoot = "${src.name}/src";
 
-  propagatedBuildInputs = [
-    appdirs
-    py
-    lxml
-    packaging
-  ];
+  # propagate wireshark, so pyshark can find it when used
+  propagatedBuildInputs = [ appdirs py lxml packaging wireshark-cli ];
 
   preCheck = ''
     export HOME=$(mktemp -d)
   '';
 
-  checkInputs = [
-    pytestCheckHook
-    wireshark-cli
-  ];
+  checkInputs = [ pytestCheckHook wireshark-cli ];
 
-  pythonImportsCheck = [
-    "pyshark"
-  ];
+  pythonImportsCheck = [ "pyshark" ];
 
-  pytestFlagsArray = [
-    "../tests/"
-  ];
+  pytestFlagsArray = [ "../tests/" ];
 
   meta = with lib; {
-    description = "Python wrapper for tshark, allowing Python packet parsing using Wireshark dissectors";
+    description =
+      "Python wrapper for tshark, allowing Python packet parsing using Wireshark dissectors";
     homepage = "https://github.com/KimiNewt/pyshark/";
     license = licenses.mit;
     maintainers = with maintainers; [ ];