Python - Extracting information from dictionary in a specific way

Question

I am trying to extract certain values from a dictionary and display it a specific way. I'll show you my code example below:

dict = [{'Titel': 'Rush', 'Name': 'Floris', 'Starttime': '20:30', 'Email': '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Cake', 'Code': 'ABC123'},
 {'Titel': 'Rush', 'Voornaam': 'Jaron', 'Starttime': '20:30', 'Email': '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Pie', 'Code': 'XYZ123'},
 {'Titel': 'Underneath', 'Name': 'Klaas', 'Starttime': '04:00', 'Email': '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Klassie', 'Code': 'fbhwuq8674'}]

That is my dictionary. What I want as output is:

Titel, Starttime,
Surname, Name, Email

So it would look like this:

Rush, 20:30, 
Cake, Floris, [email protected]
Pie, Jaron, [email protected]

Underneath, 04:00,
Klassie, Klaas, [email protected]

Yeah, they are all defined in a CSV file. They all follow the same format. Dict keys are: 'titel', 'name', 'starttime', 'email', 'supplier', 'surname', 'code' — Cake, Oct 15 '15 at 09:49
It's not a dictionary it's a list of dictionaries, also the field should be 'Title' instead of 'Titel' — garg10may, Oct 15 '15 at 10:44

score 3 · Accepted Answer · edited May 23 '17 at 11:52

3

I used VKS's code to build it thanks VKS :P

Using groupy,list comprehension and sting formatting

Code:

from itertools import groupby
k = [{'Titel': 'Rush', 'Name': 'Floris', 'Starttime': '20:30', 'Email':      '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Cake', 'Code': 'ABC123'},
{'Titel': 'Rush', 'Voornaam': 'Jaron', 'Starttime': '20:30', 'Email': '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Pie', 'Code': 'XYZ123'},
{'Titel': 'Underneath', 'Name': 'Klaas', 'Starttime': '04:00', 'Email': '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Klassie', 'Code': 'fbhwuq8674'}]

lst=[(i["Titel"],i["Starttime"],i["Surname"],i.get("Name","None"), i["Email"]) for i in k]
lst.sort(key=lambda x:(x[0],x[1]))
for key,groups in groupby(lst,key=lambda x:(x[0],x[1])):
    print "{}\t{}".format(key[0],key[1])
    for value in groups:
        print "{}\t{}\t{}".format(value[2],value[3],value[4])
    print ""

Output:

Rush    20:30
Cake    Floris  [email protected]
Pie     None    [email protected]

Underneath      04:00
Klassie Klaas   [email protected]

edited May 23 '17 at 11:52

Community

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answered Oct 15 '15 at 10:06

The6thSense

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That.. is... gorgeous! Exactly what I need! Thank you so much Vignesh. – Cake Oct 15 '15 at 10:08
@Cake happy to help but do look it to groupby and string formatting it will be usefull for you – The6thSense Oct 15 '15 at 10:09
you mean I should look into the module so that I can use it for future endeavors? If so, I certainly will! – Cake Oct 15 '15 at 10:12
@Cake yes I have also added links if you want to refer to – The6thSense Oct 15 '15 at 10:17

score 1 · Answer 2 · answered Oct 15 '15 at 09:50

k = [{'Titel': 'Rush', 'Name': 'Floris', 'Starttime': '20:30', 'Email':      '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Cake', 'Code': 'ABC123'},
 {'Titel': 'Rush', 'Voornaam': 'Jaron', 'Starttime': '20:30', 'Email': '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Pie', 'Code': 'XYZ123'},
 {'Titel': 'Underneath', 'Name': 'Klaas', 'Starttime': '04:00', 'Email': '[email protected]', 'Supplier': 'RTL8', 'Surname': 'Klassie', 'Code': 'fbhwuq8674'}]

print [(i["Titel"],i["Starttime"],i["Surname"], i["Email"]) for i in k]

You can use this and you will get tuple of all info you want.

LetzerWille · Answer 3 · 2015-10-15T10:34:22.677

1

def print_my_d(d):

     print(d[0]['Titel'], d[0]['Starttime'])
     for l in d[:2]:
         print(l['Surname'], l['Name'], l['Email'])
     print()
     print(d[2]['Titel'],d[2]['Starttime'])
     print("{}, {}, {}".format(d[2]['Surname'],d[2]['Name'], d[2]['Email']))


print_my_d(d)

Rush 20:30
Cake Floris [email protected]
Pie Jaron [email protected]

Underneath 04:00
Klassie, Klaas, [email protected]

edited Oct 15 '15 at 10:34

answered Oct 15 '15 at 09:58

LetzerWille

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Than you for replying @LetzerWille. You're very close, but it's not quite what I want. I want the Titel + Time to ONLY be printed once and all of the values that match that titel, within the dict, to be printed underneath. – Cake Oct 15 '15 at 10:01
@Cake. Changed to reflect what you need – LetzerWille Oct 15 '15 at 10:15
@LetzerWille still some things are missing – The6thSense Oct 15 '15 at 10:19
@LetzerWille happy to help but this will not work if the sample cases changes that is instead of three element list the user can get one element list it is best to use group by – The6thSense Oct 15 '15 at 10:39
@VigneshKalai that's true. but even key naming can change. Nothing is eternal. I assume it is a toy for OP and not a production stuff. Meanwhile I will look closer at you general solution ... I like it ... – LetzerWille Oct 15 '15 at 10:43
@LetzerWille agreed :) and happy that you liked it :) – The6thSense Oct 15 '15 at 10:44

Python - Extracting information from dictionary in a specific way

3 Answers3