Question

I’m trying to associate latitude and longitude values to different users (I have multiple values of “check-ins” for each user) and I want to store them in a correct and efficient way so that I can easily access the information for each user in the future.

I’m new to Python and dont know exactly how this can be done.

For example, For each user I have:

<username> <latitude> <longitude>

Any idea how this can be done?

Answer 1

# Create default dict of lists
import collections
users = collections.defaultdict(list)

# Add coordinates 10,20 to Bob
users['Bob'].append((10, 20))

print users['Bob']
>>> [(10,20)]

# Add coordinates 5,5 to Bob
users['Bob'].append((5, 5))


print users['Bob']
>>> [(10,20), (5,5)]