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I'd like to structure a dictionary in python whose keys are pairs of min/max values between 0 and 1. For instance:
myDict = {(0, .5): 'red', (.5, 1): 'orange'}
I'd like to be able to call entries in the dictionary with a number within the set [min, max).
>>> myDict[.464897]
'red'
>>> myDict[.5]
'orange'
I feel like there might be a nice, simple way to do this. It is elusive, though, as I am still in my python diapers.
541
The dictionary webstersDict used strings as keys in the dictionary, but dictionary keys can be any immutable data type (numbers, strings, tuples etc). Dictionary values can be just about anything (int, lists, functions, strings, etc).
Dictionary is a unique collection in Python. It contains key-value pairs. Dictionary can also contain tuple, sets and lists.
Sets being mutable are not hashable, so they can't be used as dictionary keys. On the other hand, frozen sets are hashable and can be used as keys to a dictionary.
General Idea: In Python, if we want a dictionary to have multiple values for a single key, we need to store these values in their own container within the dictionary. To do so, we need to use a container as a value and add our multiple values to that container. Common containers are lists, tuples, and sets.
Assuming the intervals do not overlap, there are no gaps and they are sorted you use a binary search:
>>> keys = [0.5, 1] # goes from 0 to 1, specify end interval
>>> vals = ['red', 'orange']
>>> import bisect
>>> vals[bisect.bisect_right(keys, 0.464897)]
'red'
>>> vals[bisect.bisect_right(keys, 0.5)]
'orange'
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