pick_debaters.py

import sys
import numpy as np
import pandas as pd

df = pd.read_csv(sys.argv[1], dtype=str)
debaters = [(topic, set(df['Name'][df[topic] == 'Yes'])) for topic in df.columns[2:]]

np.random.shuffle(debaters)
attendees = set()
picked = set()

for topic, names in debaters:
    attendees.update(names)
    avail = names - picked
    if len(avail) >= 2:
        a, b = np.random.choice(list(avail), size=2, replace=False)
        picked.update([a, b])
        print("{:<30} {:>15} & {:<15}".format(topic, a, b))

print("Attendees ({}): {}".format(len(attendees), ", ".join(attendees)))