30 lines
1.1 KiB
Python
30 lines
1.1 KiB
Python
# Title: Project 1 - Friends
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# Author: Rory Healy
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# Date created - 16th April 2019
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# Date modified - 18th April 2019
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def get_friendly_dict(friend_list):
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'''Takes a list of reciprocal friendships links between individuals,
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friend_list, and calculates the degree-one friends of each individual.
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Returns a dictionary of sets containing all the immediate friends.'''
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# Creates a list of everyone.
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everyone_list = []
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for pairs in friend_list:
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for person in pairs:
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if person not in everyone_list:
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everyone_list.append(person)
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# Creates a dictionary using the people from everyone_list as keys, and
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# assigns values as a set of immediate friends.
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current_friends = []
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friend_dict = {}
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for person in everyone_list:
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for pairs in friend_list:
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# Adds the other person in the pair to the list current_friends.
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if person in pairs:
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current_friends.append(pairs[pairs.index(person) - 1])
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friend_dict[person] = set(current_friends)
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current_friends = []
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return friend_dict
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