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list. extend(iterable) Extend the list by adding all the products from the iterable. Comparable to a [len(a):] = iterable. list. insert(i, x) Place an item at an offered position. The very first argument is the index of the element before which to place, so a. insert(0, x) inserts at the front of the list, and a.

append(x). list. remove(x) Remove the very first product from the list whose worth amounts to x. It raises a Value, Error if there is no such product. list. pop( [i] Get rid of the item at the given position in the list, and return it. If no index is specified, a. pop() removes and returns the last product in the list.

You will see this notation often in the Python Library Referral.) list. clear() Remove all items from the list. Equivalent to del a [:] list. index(x [, begin [, end]] Return zero-based index in the list of the first item whose worth is equal to x. Raises a Worth, Mistake if there is no such product.

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The returned index is calculated relative to the beginning of the complete series instead of the start argument. list. count(x) Return the variety of times x appears in the list. list. sort(*, secret=None, reverse=False) Sort the products of the list in location (the arguments can be used for sort modification, see sorted() for their explanation).

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reverse() Reverse the components of the list in location. list. copy() Return a shallow copy of the list. Comparable to a [:] An example that uses most of the list techniques: >> > fruits = [' orange', 'apple', 'pear', 'banana', 'kiwi', 'apple', 'banana'] >> > fruits. count('apple') 2 >> > fruits. count('tangerine') 0 >> > fruits.

index('banana', 4) # Discover next banana beginning a position 4 6 >> > fruits. reverse() >> > fruits [' banana', 'apple', 'kiwi', 'banana', 'pear', 'apple', 'orange'] >> > fruits. append('grape') >> > fruits [' banana', 'apple', 'kiwi', 'banana', 'pear', 'apple', 'orange', 'grape'] >> > fruits. sort() >> > fruits [' apple', 'apple', 'banana', 'banana', 'grape', 'kiwi', 'orange', 'pear'] >> > fruits.

This is a style concept for all mutable information structures in Python. Another thing you may see is that not all data can be sorted or compared. For example, [None, 'hello', 10] does not sort because integers can't be compared to strings and None can't be compared to other types. Also, there are This Is Cool that do not have actually a defined buying relation.