# -*- coding: utf-8 -*-
"""
Created on Fri Sep 23 11:00:26 2022

@author: cpresser
"""

#tables of values
# name1 data1,1 data1,2 data1,3
# name2 data2,1 ...
# ...

#e.g Country population by year


#read names from the user
DATA_POINTS = 4 #number of values of data in each "row"
names = []
averages = [] 

#store the data:
data = []  #each item will be a list of the 4 values

#initialization
name = input("Enter a name (q to quit): ")

while name != "q":
    #repeat (for each name the user enters)
    #add it to the list
    names.append(name)

    # a list of values associated with this name    
    values = []
    
    sum = 0
    #get the data that goes with it
    for i in range(DATA_POINTS):
        value = float(input("Enter a number: "))
        sum = sum + value
        values.append(value)
    
    #add the values to the data list
    data.append(values)
    
    #compute the average
    avg = sum/DATA_POINTS
    #store the avarage
    averages.append(avg)
    
    #next
    name = input("Enter a name (q to quit): ")

#these are parallel lists
#print(names)
#print(averages)

#print items together
#use a for loop through the indices
# 0..length of names list
for i in range(len(names)):
    #print(f"{names[i]:10}{averages[i]:10}{data[i]}")
    print(f"{names[i]:10}{averages[i]:10}", end=": ")
    for j in range(len(data[i])):
        print(data[i][j], end=" ")
    print()
    
#NOTE: data[i] is a list of four values

# zip together the parallel list
#print( zip(names, averages) )

for n, a in zip(names, averages):
    print(f"{n:10}{a:>10.5f}")

# the list of lists
print(data)
#print one of the lists
print(data[1])

#print an item in the list
print(data[1][3])