Merge pull request #71 from paulinus/handle-no-encoding

Decode message only if encoding is known

setup.py

@@ -265,7 +265,8 @@ def enqueue_output(out, queue):
 def _log_buf(buf):
     if not buf:
         return
-    buf = buf.decode(sys.stdout.encoding)
+    if sys.stdout.encoding:
+        buf = buf.decode(sys.stdout.encoding)
     buf = buf.rstrip()
     lines = buf.splitlines()
     for line in lines: