dict_clipper.py

from scipy import clip

def dict_clipper(dictionary):
    """
    Clips all the numeric values of a dictionary so
    that they lie within [0,1].

    It recurses within inner dictionaries,
    if any.
    
    >>> A = {"B":-5, "C":{"D":10000, "F":0.3}}
    >>> dict_clipper(A)
    >>> print(A)
    {"B":0, "C":{"D":1, "F":0.3}}
    """

    for key in dictionary:
        if isinstance(dictionary[key], numbers.Number):
            dictionary[key] = clip(dictionary[key], 0, 1)
        elif isinstance(dictionary[key], dict):
            dict_clipper(dictionary[key])
        else:
            raise ValueError(f"Cannot recognise dictionary[{key}]")