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 vote249 views1 answer
Cant import flask mail
Python Flask
0 vote196 views1 answer
AttributeError: type object 'User' has no attribute 'query'
Python
0 vote216 views1 answer
Terminal commands for install python on cpanel
Python
0 vote206 views1 answer
'ManyRelatedManager' object is not iterable
Python
4 votes192 views2 answers
Get stock data in python
Python
28 votes273 views3 answers
Np.zero
Python
4 votes198 views1 answer
How to make a list string in python
Python
0 vote192 views1 answer
How to plot 2 decimal values in axis python
Python
0 vote199 views1 answer
Open a python script on click flask
Python
1 vote189 views1 answer
Python order 2d array by secode element
Python