Appending to a Dictionary Value List in Loop

Question

I have some code where I am using a list of names, and a file (eventually multiple files) of results (team, name, place). The end result I am looking for is to have each person

Answer 1

IIUC, your dictionary is mapping place to score. You can leverage a defaultdict to replace your fromkeys method:

from collections import defaultdict

# Initialize an empty dictionary as you've done with default list entries
scores = defaultdict(list)

# Using the with context manager allows for safe file handling
with open("ResultsTest.txt", 'r') as f1:
    lines = f1.read().splitlines()

# Points lookup as you've done before
lookup = {1: 100, 2: 90, 3: 80}

for l in lines:
    team, name, place = l.split('\t') # unpacking makes this way more readable

    score = lookup.get(int(place))
    scores[team].append(score)