fix indexing error on empty list for merge-key position0.15.87

1 files changed, 1 insertions, 1 deletions

diff --git a/main.py b/main.py
index f06c52e..184c7ad 100644
--- a/main.py
+++ b/main.py
@@ -324,7 +324,7 @@ class YAML(object):
         """
         if not hasattr(stream, 'read') and hasattr(stream, 'open'):
             # pathlib.Path() instance
-            with stream.open('r') as fp:  # type: ignore
+            with stream.open('rb') as fp:  # type: ignore
                 return self.load(fp)
         constructor, parser = self.get_constructor_parser(stream)
         try: