Mutable or immutable?
The following function adds a mapping between a string and the lowercase version of that string to a dictionary. What do you expect the values of d
and s
to be after the function is called?
def store_lower(_dict, _string):
"""Add a mapping between `_string` and a lowercased version of `_string` to `_dict`
Args:
_dict (dict): The dictionary to update.
_string (str): The string to add.
"""
orig_string = _string
_string = _string.lower()
_dict[orig_string] = _string
d = {}
s = 'Hello'
store_lower(d, s)
This exercise is part of the course
Writing Functions in Python
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