Mar 9, 2009 · What are the differences between lists and tuples, and what are their respective advantages and disadvantages?

Summary Tuples tend to perform better than lists in almost every category: Tuples can be constant folded. Tuples can be reused instead of copied. Tuples are compact and don't over-allocate. Tuples …

In Python, when should you use lists and when tuples? Sometimes you don't have a choice, for example if you have "hello %s you are %s years old" % x then x must be a tuple.

How to merge lists into a list of tuples? Asked 15 years, 9 months ago Modified 3 years, 11 months ago Viewed 381k times

With regard to "Should I store tuples or lists in my list?", a rule of thumb is to make things as immutable as possible. If you don't need to modify the sublists in place, make them tuples.

Sep 9, 2014 · In Python, a list is sometimes converted into a tuple for use as a dictionary key, because Python dictionary keys need to be immutable (i.e. constant) values, whereas Python lists are mutable …

Jul 1, 2019 · 1 Dictionary: A python dictionary is used like a hash table with key as index and object as value. List: A list is used for holding objects in an array indexed by position of that object in the array. …

23 In Python 3 zip returns an iterator instead and needs to be passed to a list function to get the zipped tuples:

Jul 28, 2010 · A useful variant of tuple is its sub-type collections.namedtuple (requires Python 2.6 or better) which lets you access items by name (with attribute syntax) as well as by index (the normal …

Unpacking a list / tuple of pairs into two lists / tuples [duplicate] Asked 14 years, 2 months ago Modified 2 years, 10 months ago Viewed 259k times