python - Grouping list by unique values -


i have list 

list = [{'album': 'spring times', 'artist': 'momo pulse'}, {'album': 'spring times', 'artist': 'k.oshkin'}, {'album': 'damn ', 'artist': 'florent b'}]

i want group get:

list = [{'album': 'spring times', 'artist1': 'momo pulse', 'artist2': 'k.oshkin'}, {'album': 'damn ', 'artist1': 'florent b'}]

how can that? ideas?

from itertools import groupby  # input my_list = [{'album': 'spring times', 'artist': 'momo pulse'}, {'album': 'spring times', 'artist': 'k.oshkin'}, {'album': 'damn ', 'artist': 'florent b'}]  # have function return merged dictionary after update def merge_dict(a, b):     a.update(b)     return  # key function sort , groupby sortkey = lambda d: d['album']  # sort , group album my_groups = groupby(sorted(my_list, key=sortkey), key=sortkey)  # generate output print [merge_dict({'album':k},{'artist'+str(i+1):d['artist'] i, d in enumerate(g)}) k, g in my_groups]

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