根据另一个列表将一个字符串元素列表分组

Question

I want to group by my_list based on another list keys as follows:

my_list = ['apple_2010', 'banana_2010', 'carrot_2010', 'dog_2011', 'eye_2011', 'fig_2011']

keys = ['2010','2010','2010','2011','2011','2011']

for x,y in zip(my_list,keys):

???

The expected answer is:

answer = [['apple_2010', 'banana_2010', 'carrot_2010'],
 ['dog_2011', 'eye_2011', 'fig_2011']]

Answer 1

>>> my_list = ['apple_2010', 'banana_2010', 'carrot_2010', 'dog_2011', 'eye_2011', 'fig_2011']
>>> keys = ['2010','2010','2010','2011','2011','2011']
>>> print [[value for value in my_list if key in value] for key in set(keys)]

[['dog_2011', 'eye_2011', 'fig_2011'], ['apple_2010', 'banana_2010', 'carrot_2010']]