Index: lldb/source/API/SBTarget.cpp
===================================================================
--- lldb/source/API/SBTarget.cpp
+++ lldb/source/API/SBTarget.cpp
@@ -287,16 +287,24 @@
                      (const char **, const char **, const char *), argv, envp,
                      working_directory);
 
-  char *stdin_path = nullptr;
-  char *stdout_path = nullptr;
-  char *stderr_path = nullptr;
-  uint32_t launch_flags = 0;
-  bool stop_at_entry = false;
+  TargetSP target_sp = GetSP();
+  if (!target_sp)
+    return LLDB_RECORD_RESULT(SBProcess());
+
+  SBLaunchInfo launch_info = GetLaunchInfo();
+
+  if (Module *exe_module = target_sp->GetExecutableModulePointer())
+    launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(),
+                                  /*add_as_first_arg*/ true);
+  if (argv)
+    launch_info.SetArguments(argv, /*append*/ true);
+  if (envp)
+    launch_info.SetEnvironmentEntries(envp, /*append*/ false);
+  if (working_directory)
+    launch_info.SetWorkingDirectory(working_directory);
+
   SBError error;
-  SBListener listener = GetDebugger().GetListener();
-  return LLDB_RECORD_RESULT(Launch(listener, argv, envp, stdin_path,
-                                   stdout_path, stderr_path, working_directory,
-                                   launch_flags, stop_at_entry, error));
+  return LLDB_RECORD_RESULT(Launch(launch_info, error));
 }
 
 SBError SBTarget::Install() {
Index: lldb/test/API/python_api/target/TestTargetAPI.py
===================================================================
--- lldb/test/API/python_api/target/TestTargetAPI.py
+++ lldb/test/API/python_api/target/TestTargetAPI.py
@@ -150,6 +150,20 @@
         self.assertTrue(error.Success(), "Make sure memory read succeeded")
         self.assertEqual(len(content), 1)
 
+
+    @add_test_categories(['pyapi'])
+    def test_launch_simple(self):
+        d = {'EXE': 'b.out'}
+        self.build(dictionary=d)
+        self.setTearDownCleanup(dictionary=d)
+        target = self.create_simple_target('b.out')
+        self.runCmd("settings set target.disable-stdio true")
+        process = target.LaunchSimple(
+            None, None, self.get_process_working_directory())
+        self.runCmd("run")
+        output = process.GetSTDOUT(1000)
+        self.assertEqual(output, "")
+
     def create_simple_target(self, fn):
         exe = self.getBuildArtifact(fn)
         target = self.dbg.CreateTarget(exe)