Flatten list python

Python flat list from list of list

flat_list = [item for sublist in l for item in sublist]

#which is equivalent to this 
flat_list = []
for sublist in l:
    for item in sublist:
        flat_list.append(item)

Source: stackoverflow.com

Flatten a list of lists python

flattened = [val for sublist in list_of_lists for val in sublist]

Source: stackoverflow.com

Flatten a list of list python

# idiomatic python

# using itertools
import itertools

list_of_list = [[1, 2, 3], [4, 5], [6]]
chain = itertools.chain(*images)

flattened_list = list(chain)
# [1, 2, 3, 4, 5, 6]

Python flatten list

itertools.chain.from_iterable(factors)

Python flatten list

l = [[1, 2], [3, 4], [5, 6, 7]]
flat_list = [item for sublist in l for item in sublist]
# flat_list = [1, 2, 3, 4, 5, 6, 7]

Flatten list python

def flatten(L):
    for item in L:
        try:
            yield from flatten(item)
        except TypeError:
            yield item

list(flatten([[[1, 2, 3], [4, 5]], 6]))
>>>[1, 2, 3, 4, 5, 6]

Source: stackoverflow.com

Similar codes

70 votes332 views6 answers
What is python virtual environment
Python
0 vote309 views1 answer
Python setattr function
Python
-1 vote251 views1 answer
Instalar tkinter en python 3.10
Python
0 vote300 views1 answer
Comment transformer un chaine de caractere en liste python
Python
0 vote316 views1 answer
Multiprocessing print does not work
Python
0 vote320 views1 answer
Iversao de matriz python
Python
0 vote311 views1 answer
Install lz4 python 3
Python
1 vote296 views3 answers
Does tuple allow duplicate values in python
Python
5 votes283 views4 answers
Fahrenheit to celsius python program
Python
2 votes254 views1 answer
Django.core.exceptions.improperlyconfigured: wsgi application 'backend.wsgi.application' could not be loaded; error importing module.
Python