Python flatten list

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

1 vote196 views1 answer
Torch concat two 1d tensor
Python
1 vote225 views1 answer
How to create routes in flask
Python
1 vote230 views1 answer
Read bytes from file python
Python
0 vote238 views2 answers
Load specific columns dataframe
Python
3 votes241 views4 answers
Fizz buzz fizzbuzz python game
Python
10 votes212 views2 answers
How to detect an even number in python
Python
0 vote222 views1 answer
Create matrice 2d whit 3colum panda
Python
2 votes233 views3 answers
Normalize numpy array
Python
0 vote242 views1 answer
Get type name python
Python
0 vote236 views1 answer
Rabin karp algorithm
Python