add kwargs to only non-rb mode

Unidata · Jan 7, 2020 · 3981527 · 3981527
1 parent 529e995
commit 3981527
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/metpy/io/_tools.py b/src/metpy/io/_tools.py
@@ -22,12 +22,13 @@ def open_as_needed(filename, mode='rb'):
     if hasattr(filename, 'read'):
         return filename
 
+    kwargs = {'errors': 'surrogateescape'} if mode is not 'rb' else {}
     if filename.endswith('.bz2'):
         return bz2.BZ2File(filename, mode)
     elif filename.endswith('.gz'):
         return gzip.GzipFile(filename, mode)
     else:
-        return open(filename, mode, errors='surrogateescape')
+        return open(filename, mode, **kwargs)
 
 
 class NamedStruct(Struct):