/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 vote114 views1 answer
Import numpy import cv2 cv2.imshow('image',img) cv2.waitKey(0)
Python
5 votes131 views2 answers
Pyodbc sql server connection string
Python
0 vote120 views1 answer
Conda install pypy
Python
1 vote108 views1 answer
Declare empty array of complex type python
Python
5 votes119 views2 answers
Import get_object_or_404
Python
22 votes116 views6 answers
How to install pygame in python
Python
0 vote113 views1 answer
Cv2 opencv-python imshow while loop
Python
0 vote117 views1 answer
Install ansible with pip
Python
0 vote116 views1 answer
Get every second elemnt of array matlab
Python
0 vote124 views1 answer
Delete history django simple
Python