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- """NotebookNode - adding attribute access to dicts"""
- from ipython_genutils.ipstruct import Struct
- from collections import Mapping
- class NotebookNode(Struct):
- """A dict-like node with attribute-access"""
- def __setitem__(self, key, value):
- if isinstance(value, Mapping) and not isinstance(value, NotebookNode):
- value = from_dict(value)
- super(NotebookNode, self).__setitem__(key, value)
- def update(self, *args, **kwargs):
- """
- A dict-like update method based on CPython's MutableMapping `update`
- method.
- """
- if len(args) > 1:
- raise TypeError('update expected at most 1 arguments, got %d' %
- len(args))
- if args:
- other = args[0]
- if isinstance(other, Mapping):
- for key in other:
- self[key] = other[key]
- elif hasattr(other, "keys"):
- for key in other.keys():
- self[key] = other[key]
- else:
- for key, value in other:
- self[key] = value
- for key, value in kwargs.items():
- self[key] = value
- def from_dict(d):
- """Convert dict to dict-like NotebookNode
- Recursively converts any dict in the container to a NotebookNode.
- This does not check that the contents of the dictionary make a valid
- notebook or part of a notebook.
- """
- if isinstance(d, dict):
- return NotebookNode({k: from_dict(v) for k, v in d.items()})
- elif isinstance(d, (tuple, list)):
- return [from_dict(i) for i in d]
- else:
- return d
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