Fix: make pyarrow buildable on darwin

This change disables several tests that fail on darwin due to requiring
localhost networking. In addition, it bumps up the number of open file
descriptors to allow test_pandas.py/TestConvertMisc tests to pass.

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

@@ -83,12 +83,19 @@ buildPythonPackage rec {
   ] ++ lib.optionals stdenv.isDarwin [
     # Requires loopback networking
     "--deselect=pyarrow/tests/test_ipc.py::test_socket_"
+    "--deselect=pyarrow/tests/test_flight.py::test_never_sends_data"
+    "--deselect=pyarrow/tests/test_flight.py::test_large_descriptor"
+    "--deselect=pyarrow/tests/test_flight.py::test_large_metadata_client"
+    "--deselect=pyarrow/tests/test_flight.py::test_none_action_side_effect"
   ];
 
   dontUseSetuptoolsCheck = true;
   preCheck = ''
     shopt -s extglob
     rm -r pyarrow/!(tests)
+  '' + lib.optionalString stdenv.isDarwin  ''
+    # OSError: [Errno 24] Too many open files
+    ulimit -n 1024
   '';
 
   pythonImportsCheck = [ "pyarrow" ] ++ map (module: "pyarrow.${module}") ([
@@ -104,7 +111,6 @@ buildPythonPackage rec {
   ] ++ lib.optionals (!stdenv.isDarwin) [ "plasma" ]);
 
   meta = with lib; {
-    broken = stdenv.isDarwin;
     description = "A cross-language development platform for in-memory data";
     homepage = "https://arrow.apache.org/";
     license = licenses.asl20;