      def test_ok_code(self):
          from sh import ls, ErrorReturnCode_1, ErrorReturnCode_2
  
-@@ -1004,6 +1005,7 @@ print(sys.argv[1])
+@@ -982,6 +983,7 @@ print(sys.argv[1])
          now = time.time()
          self.assertGreater(now - start, sleep_time)
  

     def test_background_exception(self):
         from sh import ls, ErrorReturnCode_1, ErrorReturnCode_2
         p = ls("/ofawjeofj", _bg=True, _bg_exc=False)  # should not raise
@@ -1801,6 +1803,7 @@ exit(49)
         p = python(py.name, _ok_code=49, _bg=True)
         self.assertEqual(49, p.exit_code)
 

     def test_cwd(self):
         from sh import pwd
         from os.path import realpath
@@ -2777,6 +2780,7 @@ print("cool")
     # on osx.  so skip it for now if osx
     @not_macos
     @requires_progs("lsof")
+    @skipUnless(False, "Flaky on Hydra")
     def test_no_fd_leak(self):
         import sh
         import os
@@ -2879,6 +2883,7 @@ print("hi")
         python(py.name, _in=stdin)
 
     @requires_utf8
