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-rw-r--r--youtube_dl/swfinterp.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/youtube_dl/swfinterp.py b/youtube_dl/swfinterp.py
index 6f3c3bf95..99220940f 100644
--- a/youtube_dl/swfinterp.py
+++ b/youtube_dl/swfinterp.py
@@ -170,6 +170,10 @@ class _Undefined(object):
def __hash__(self):
return 0
+ def __str__(self):
+ return 'undefined'
+ __repr__ = __str__
+
undefined = _Undefined()
@@ -686,6 +690,7 @@ class SWFInterpreter(object):
res = _builtin_classes[mname]
else:
# Assume unitialized
+ # TODO warn here
res = undefined
stack.append(res)
elif opcode == 97: # setproperty