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python how to flatten a list

flat_list = [item for sublist in l for item in sublist]
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flatten list of lists python

flat_list = [item for sublist in t for item in sublist]
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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]
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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)
Comment

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]
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python flatten list

my_list = [[1], [2, 3], [4, 5, 6, 7]]

flat_list = sum(my_list, [])
print(flat_list)
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python list flatten

nested_lists = [[1, 2], [[3, 4], [5, 6], [[7, 8], [9, 10], [[11, [12, 13]]]]]]
flatten = lambda x: [y for l in x for y in flatten(l)] if type(x) is list else [x]
flatten(nested_lists)
# [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
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python flatten list

my_list = [[1], [2, 3], [4, 5, 6, 7]]

flat_list = [num for sublist in my_list for num in sublist]
print(flat_list)
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python flatten list

itertools.chain.from_iterable(factors)
Comment

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]
Comment

flatten a list

# flatten a list
flst = [[1,2,3], [8,9,12,17],[3,7]]
flatten_list = sorted(sum(flst,[]))
print(flatten_list)					# [1, 2, 3, 3, 7, 8, 9, 12, 17]
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flatten list of lists python

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

flatten list in python

regular_list = [[1, 2, 3, 4], [5, 6, 7], [8, 9]]
flat_list = [item for sublist in regular_list for item in sublist]
print('Original list', regular_list)
print('Transformed list', flat_list)
Comment

python flatten a list of lists

from collections.abc import Iterable

def flatten(l):
    for el in l:
        if isinstance(el, Iterable) and not isinstance(el, (str, bytes)):
            yield from flatten(el)
        else:
            yield el
Comment

python flatten list

from functools import reduce

my_list = [[1], [2, 3], [4, 5, 6, 7]]
print(reduce(lambda x, y: x+y, my_list))
Comment

python flatten list

my_list = [[1], [2, 3], [4, 5, 6, 7]]

flat_list = []
for sublist in my_list:
    for num in sublist:
        flat_list.append(num)

print(flat_list)
Comment

flatten list python

from typing import Iterable

# flatten any number of nested iterables (lists, tuples)
def flatten_iterables(iterable: Iterable) -> list:
    """Convert iterables (lists, tuples) to list (excluding string and dictionary)

    Args:
        iterables (Iterable): Iterables to flatten

    Returns:
        list: return a flattened list
    """
    lis = []
    for i in iterable:
        if isinstance(i, Iterable) and not isinstance(i, str):
            lis.extend(flatten_iterables(i))
        else:
            lis.append(i)
    return lis
Comment

flatten lists python

flat_list = []
for sublist in l:
    for item in sublist:
        flat_list.append(item)
Comment

how to flatten list of lists in python

# if your list is like this
l = [['Adela', 'Fleda', 'Owen', 'May', 'Mona', 'Gilbert', 'Ford'], 'Adela']

# then you 
a = []
for i in l:
    if type(i) != str:
        for x in i:
            a.append(x)
    else:
        a.append(i)
 
Comment

python flatten list

import itertools

my_list = [[1], [2, 3], [4, 5, 6, 7]]

flat_list = list(itertools.chain(*my_list))
print(flat_list)
Comment

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