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[utils] Let traverse_obj accept functions as keys

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pukkandan 2021-10-09 08:14:41 +05:30
parent b922db9fe5
commit 2614f64600
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1 changed files with 15 additions and 1 deletions
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16
yt_dlp/utils.py
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@ -6335,7 +6335,9 @@ def traverse_obj(
''' Traverse nested list/dict/tuple
@param path_list A list of paths which are checked one by one.
Each path is a list of keys where each key is a string,
a tuple of strings or "...". When a tuple is given,
a function, a tuple of strings or "...".
When a fuction is given, it takes the key as argument and
returns whether the key matches or not. When a tuple is given,
all the keys given in the tuple are traversed, and
"..." traverses all the keys in the object
@param default Default value to return
@ -6368,6 +6370,18 @@ def _traverse_obj(obj, path, _current_depth=0):
_current_depth += 1
depth = max(depth, _current_depth)
return [_traverse_obj(inner_obj, path[i + 1:], _current_depth) for inner_obj in obj]
elif callable(key):
if isinstance(obj, (list, tuple, LazyList)):
obj = enumerate(obj)
elif isinstance(obj, dict):
obj = obj.items()
else:
if not traverse_string:
return None
obj = str(obj)
_current_depth += 1
depth = max(depth, _current_depth)
return [_traverse_obj(v, path[i + 1:], _current_depth) for k, v in obj if key(k)]
elif isinstance(obj, dict) and not (is_user_input and key == ':'):
obj = (obj.get(key) if casesense or (key in obj)
else next((v for k, v in obj.items() if _lower(k) == key), None))