/Python/Python sort list by custom function

Python sort list by custom function

Python sort a list by a custom order

# Example usage:
list_to_sort = [('U', 23), ('R', 42), ('L', 17, 'D')]
custom_sort_order = ['R', 'D', 'L', 'U']
sorted(list_to_sort, key=lambda list_to_sort: custom_sort_order.index(list_to_sort[0]))
# Where 0 is the tuple index to use for sorting by custom order
--> [('R', 42), ('L', 17, 'D'), ('U', 23)]

Source: stackoverflow.com

Python sort list by custom function

from functools import cmp_to_key
sorted(mylist, key=cmp_to_key(lambda item1, item2: fitness(item1) - fitness(item2)))

Source: stackoverflow.com

Python sort list by custom function

from functools import cmp_to_key
sorted(mylist, key=cmp_to_key(compare))

Source: stackoverflow.com

Similar codes

0 vote143 views1 answer
Remove multiple strings from list python
Python
16 votes248 views5 answers
Python manage.py collectstatic
Python
1 vote141 views1 answer
Python find dict in list of dict by id
Python
0 vote148 views1 answer
Python functools
Python
0 vote131 views1 answer
Sha 256 python
Python
5 votes137 views4 answers
Python generator
Python
0 vote143 views1 answer
Selenium get back from iframe python
Python
0 vote128 views1 answer
Making Dataframe with named column
Python
1 vote147 views1 answer
How to config your flask for gmail
Python
11 votes136 views3 answers
Create virtualenv python3 mac
Python