Python list group and sum with more fields

Question

I have a list with two integer fields which I would like to sum (string,integer, integer)

myList= [[[\"26-07-2017\",2,0], [\"26-07-2017\",3,0], [\"27-07-2017\",         


        

Answer 1

You can probably do this with Pandas

import pandas as pd

df = pd.DataFrame(myList[0])
answer = df.groupby([0]).sum()

gives me

            1  2
0               
26-07-2017  5  0
27-07-2017  1  1

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EDIT: I used your list as is above, but with a few modifications, the code makes a bit more sense:

# name the columns
df = pd.DataFrame(myList[0], columns=['date', 'int1', 'int2'])

# group on the date column
df.groupby(['date']).sum()

returns

            int1  int2
date                  
26-07-2017     5     0
27-07-2017     1     1

and the dataframe looks like:

         date  int1  int2
0  26-07-2017     2     0
1  26-07-2017     3     0
2  27-07-2017     1     0
3  27-07-2017     0     1