all Python 3Built-in functionsterm

list

types

Creates a mutable list from an iterable, or an empty list. list() with no arguments is equivalent to [].

Syntax

list(iterable)

list(other_list) makes a shallow copy: the outer list is new, but nested lists and objects are the same ones, so editing copy[0][0] shows up in the original. Applied to a generator, map or filter, list() drains it in one go, and a second call returns an empty list because the iterator is exhausted. Applied to a string it yields individual characters, not ['hello'] — for a one-element list write the brackets yourself.

Examples

print(list('hello'))  # → ['h','e','l','l','o']
print(list(range(5)))  # → [0,1,2,3,4]
print(list({1,2,3}))  # → [1,2,3]
print(list({'a':1,'b':2}))  # → ['a','b']
print(list(zip([1,2],[3,4])))  # → [(1,3),(2,4)]

See also

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