[test] Fix 'argument must be str, not bytes' for Python 3.

Use `sys.stdout.buffer` instead of `sys.stdout` in lldbpexpect.py.

llvm-svn: 370545

1 files changed, 2 insertions, 2 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/lldbpexpect.py b/lldb/packages/Python/lldbsuite/test/lldbpexpect.py
index db989036cd2..a72d36f8271 100644
--- a/lldb/packages/Python/lldbsuite/test/lldbpexpect.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbpexpect.py
@@ -22,13 +22,13 @@ else:
     class PExpectTest(TestBase):
 
         NO_DEBUG_INFO_TESTCASE = True
-        PROMPT = str("(lldb) ")
+        PROMPT = "(lldb) "
 
         def expect_prompt(self):
             self.child.expect_exact(self.PROMPT)
 
         def launch(self, executable=None, timeout=30, dimensions=None):
-            logfile = sys.stdout if self.TraceOn() else None
+            logfile = sys.stdout.buffer if self.TraceOn() else None
             args = ['--no-lldbinit', '--no-use-colors']
             for cmd in self.setUpCommands():
                 args += ['-O', cmd]