1 files changed, 39 insertions, 0 deletions
diff --git a/yt_dlp/utils/_deprecated.py b/yt_dlp/utils/_deprecated.py
new file mode 100644
index 0000000..a8ae8ec
--- /dev/null
+++ b/yt_dlp/utils/_deprecated.py
@@ -0,0 +1,39 @@
+"""Deprecated - New code should avoid these"""
+import warnings
+
+from ..compat.compat_utils import passthrough_module
+
+# XXX: Implement this the same way as other DeprecationWarnings without circular import
+passthrough_module(__name__, '.._legacy', callback=lambda attr: warnings.warn(
+    DeprecationWarning(f'{__name__}.{attr} is deprecated'), stacklevel=6))
+del passthrough_module
+
+
+from ._utils import preferredencoding
+
+
+def encodeFilename(s, for_subprocess=False):
+    assert isinstance(s, str)
+    return s
+
+
+def decodeFilename(b, for_subprocess=False):
+    return b
+
+
+def decodeArgument(b):
+    return b
+
+
+def decodeOption(optval):
+    if optval is None:
+        return optval
+    if isinstance(optval, bytes):
+        optval = optval.decode(preferredencoding())
+
+    assert isinstance(optval, str)
+    return optval
+
+
+def error_to_compat_str(err):
+    return str(err)