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/exchangelib/default.nix

@@ -0,0 +1,78 @@
+{ lib
+, backports-zoneinfo
+, buildPythonPackage
+, cached-property
+, defusedxml
+, dnspython
+, fetchFromGitHub
+, flake8
+, isodate
+, lxml
+, oauthlib
+, psutil
+, pygments
+, python-dateutil
+, pythonOlder
+, pytz
+, pyyaml
+, requests
+, requests_ntlm
+, requests-oauthlib
+, requests-kerberos
+, requests-mock
+, tzdata
+, tzlocal
+}:
+
+buildPythonPackage rec {
+  pname = "exchangelib";
+  version = "4.7.3";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "ecederstrand";
+    repo = pname;
+    rev = "refs/tags/v${version}";
+    hash = "sha256-79113cUVl07oeXjlDaqfdfwNZvD7EWJK8JKHsPnBRG8=";
+  };
+
+  propagatedBuildInputs = [
+    cached-property
+    defusedxml
+    dnspython
+    isodate
+    lxml
+    oauthlib
+    pygments
+    requests
+    requests_ntlm
+    requests-oauthlib
+    requests-kerberos
+    tzdata
+    tzlocal
+  ] ++ lib.optionals (pythonOlder "3.9") [
+    backports-zoneinfo
+  ];
+
+  checkInputs = [
+    flake8
+    psutil
+    python-dateutil
+    pytz
+    pyyaml
+    requests-mock
+  ];
+
+  pythonImportsCheck = [
+    "exchangelib"
+  ];
+
+  meta = with lib; {
+    description = "Client for Microsoft Exchange Web Services (EWS)";
+    homepage = "https://github.com/ecederstrand/exchangelib";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ catern ];
+  };
+}