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

0 vote215 views1 answer
Pass in 2 numbers, A and B. You should create a list with A rows and B columns, then populate each cell
Python
0 vote167 views1 answer
Pause and resume threads python
Python
0 vote176 views1 answer
Tkinter lottery app
Python
0 vote190 views1 answer
Append data at the end of an excel sheet pandas
Python
0 vote170 views1 answer
Len range
Python
0 vote172 views1 answer
Python Split list into chunks using lambda Method
Python
43 votes176 views6 answers
Json dump to file
Python
5 votes198 views1 answer
Dataframe from arrays python
Python
0 vote169 views1 answer
Python jupitor
Python
6 votes133 views1 answer
All tkinter events
Python