uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

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

@@ -0,0 +1,55 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+, pytestCheckHook
+, libxslt
+, libxml2
+, libtool
+, pkg-config
+, xmlsec
+, pkgconfig
+, setuptools-scm
+, lxml
+, hypothesis
+}:
+
+buildPythonPackage rec {
+  pname = "xmlsec";
+  version = "1.3.12";
+  format = "pyproject";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "2c86ac6ce570c9e04f04da0cd5e7d3db346e4b5b1d006311606368f17c756ef9";
+  };
+
+  # https://github.com/mehcode/python-xmlsec/issues/84#issuecomment-632930116
+  patches = [
+    ./reset-lxml-in-tests.patch
+  ];
+
+  nativeBuildInputs = [ pkg-config pkgconfig setuptools-scm ];
+
+  buildInputs = [ xmlsec libxslt libxml2 libtool ];
+
+  propagatedBuildInputs = [ lxml ];
+
+  checkInputs = [ pytestCheckHook hypothesis ];
+
+  disabledTestPaths = [
+    # Full git clone required for test_doc_examples
+    "tests/test_doc_examples.py"
+    # test_reinitialize_module segfaults python
+    # https://github.com/mehcode/python-xmlsec/issues/203
+    "tests/test_xmlsec.py"
+  ];
+
+  pythonImportsCheck = [ "xmlsec" ];
+
+  meta = with lib; {
+    description = "Python bindings for the XML Security Library";
+    homepage = "https://github.com/mehcode/python-xmlsec";
+    license = licenses.mit;
+    maintainers = with maintainers; [ zhaofengli ];
+  };
+}

pkgs/development/python-modules/xmlsec/reset-lxml-in-tests.patch

@@ -0,0 +1,22 @@
+diff --git a/tests/base.py b/tests/base.py
+index b05de1d..5ec356f 100644
+--- a/tests/base.py
++++ b/tests/base.py
+@@ -94,6 +94,7 @@ class TestMemoryLeaks(unittest.TestCase):
+ 
+     def load_xml(self, name, xpath=None):
+         """returns xml.etree"""
++        etree.set_default_parser(parser=etree.XMLParser())
+         root = etree.parse(self.path(name)).getroot()
+         if xpath is None:
+             return root
+diff --git a/tests/test_doc_examples.py b/tests/test_doc_examples.py
+index 2fc490f..53d2377 100644
+--- a/tests/test_doc_examples.py
++++ b/tests/test_doc_examples.py
+@@ -42,3 +42,5 @@ def test_doc_example(example):
+     """
+     with cd(example.parent):
+         runpy.run_path(str(example))
++    from lxml import etree
++    etree.set_default_parser(parser=etree.XMLParser())