This is an old copy of the Python FAQ. The information here may be outdated.

How do I convert between tuples and lists?

The tuple function converts any sequence (actually, any iterable) into a tuple with the same items in the same order.

For example, tuple([1, 2, 3]) yields (1, 2, 3) and tuple(‘abc’) yields (‘a’, ‘b’, ‘c’). If the argument is a tuple, it does not make a copy but returns the same object, so it is cheap to call tuple when you aren’t sure that an object is already a tuple.

The list function converts any sequence or iterable into a list with the same items in the same order. For example, list((1, 2, 3)) yields [1, 2, 3] and list(‘abc’) yields [‘a’, ‘b’, ‘c’]. If the argument is a list, list makes a copy just like seq[:] would.

CATEGORY: programming

 

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