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[outtmpl] Do not traverse None

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Closes #1585
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pukkandan 2021-11-08 00:23:57 +05:30
parent aeec0e44e2
commit 582fad70f5
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GPG key ID: 0F00D95A001F4698
2 changed files with 3 additions and 2 deletions
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1
test/test_YoutubeDL.py
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@ -737,6 +737,7 @@ def expect_same_infodict(out):
test(NA_TEST_OUTTMPL, 'NA-NA-def-1234.mp4')
test(NA_TEST_OUTTMPL, 'none-none-def-1234.mp4', outtmpl_na_placeholder='none')
test(NA_TEST_OUTTMPL, '--def-1234.mp4', outtmpl_na_placeholder='')
test('%(non_existent.0)s', 'NA')
# String formatting
FMT_TEST_OUTTMPL = '%%(height)%s.%%(ext)s'

4
yt_dlp/utils.py
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@ -6442,10 +6442,10 @@ def traverse_obj(
def _traverse_obj(obj, path, _current_depth=0):
nonlocal depth
if obj is None:
return None
path = tuple(variadic(path))
for i, key in enumerate(path):
if obj is None:
return None
if isinstance(key, (list, tuple)):
obj = [_traverse_obj(obj, sub_key, _current_depth) for sub_key in key]
key = ...