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[utils] Use key None
in traverse_obj
to return as-is
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parent
4c922dd3fc
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@ -4939,11 +4939,12 @@ def traverse_obj(
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''' Traverse nested list/dict/tuple
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@param path_list A list of paths which are checked one by one.
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Each path is a list of keys where each key is a string,
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a function, a tuple of strings or "...".
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a function, a tuple of strings/None or "...".
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When a fuction is given, it takes the key as argument and
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returns whether the key matches or not. When a tuple is given,
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all the keys given in the tuple are traversed, and
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"..." traverses all the keys in the object
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"None" returns the object without traversal
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@param default Default value to return
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@param expected_type Only accept final value of this type (Can also be any callable)
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@param get_all Return all the values obtained from a path or only the first one
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@ -4962,8 +4963,8 @@ def _traverse_obj(obj, path, _current_depth=0):
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nonlocal depth
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path = tuple(variadic(path))
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for i, key in enumerate(path):
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if obj is None:
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return None
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if None in (key, obj):
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return obj
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if isinstance(key, (list, tuple)):
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obj = [_traverse_obj(obj, sub_key, _current_depth) for sub_key in key]
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key = ...
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