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/mplfinance/default.nix

@@ -0,0 +1,26 @@
+{ lib, buildPythonPackage, fetchPypi, matplotlib, pandas }:
+
+buildPythonPackage rec {
+  pname = "mplfinance";
+  version = "0.12.7a7";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-pATiprTELt8GrEkeKjILPfpdNDVoex5t+Mc+6Gg7cPY=";
+  };
+
+  propagatedBuildInputs = [ matplotlib pandas ];
+
+  # tests are only included on GitHub where this version misses a tag
+  # and half of them fail
+  doCheck = false;
+
+  pythonImportsCheck = [ "mplfinance" ];
+
+  meta = with lib; {
+    description = "Matplotlib utilities for the visualization, and visual analysis, of financial data";
+    homepage = "https://github.com/matplotlib/mplfinance";
+    license = [ licenses.bsd3 ];
+    maintainers = [ maintainers.ehmry ];
+  };
+}