coffee shuffles

Running coffee shuffles so we can get to know a group of folks.

Group for Randy Shoup’s directs in EEE

People
Brad
DVC
Gary
Homayoun
Justin
Matt
Scott
Vince
Wyatt
Zhong
Nandha

Script. Press C-c C-c to print output

# Old script. Does strictly random pairings.
from random import shuffle, choice
 
if len(people) % 2 != 0:
    people.append(choice(people))
 
shuffle(people)
pairings = list(zip(people[::2], people[1::2]))
 
return [[a[0],b[0]] for a,b in pairings]

So this script should shift participants each month. We start with our main list. The first person gets pair with someone $offset (aka month number) away. Both parties are removed from the list. Repeat until done. Pair anyone left over with a random person.

from itertools import cycle
import datetime
import random
 
dt = datetime.datetime.now()
offset = dt.month
 
count = len(people)
 
is_odd = count % 2 == 0
 
half_way = int(count/2)
 
result = []
remaining = people.copy()
while len(remaining) != 0:
    idx = offset % len(remaining)
    if idx == 0:
        idx += 1
 
    if len(remaining) == 1:
        result.append([remaining[0], random.choice(people)])
        remaining.pop(0)
    else:
        result.append([remaining[0], remaining[idx]])
        remaining.pop(idx);
        remaining.pop(0)
 
# result = []
# for i, person in enumerate(people[:half_way]):
#     # +1 here is to get the last person in the list, else it skips them.
#     result.append([person, people[(i+offset+1)%count], i, half_way, offset, count])
return result