python how to unnest a nested list
# Basic syntax:
unnested_list = list(chain(*nested_list))
# Where chain comes from the itertools package and is useful for
# unnesting any iterables
# Example usage:
from itertools import chain
nested_list = [[1,2], [3,4]]
my_unnested_list = list(chain(*nested_list))
print(my_unnested_list)
--> [1, 2, 3, 4]flatten a list of lists python
flattened = [val for sublist in list_of_lists for val in sublist]python unlist flatten nested lists
def flatten(x):
if isinstance(x, list):
return [a for i in x for a in flatten(i)]
else:
return [x]Copyright © 2021 Codeinu
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