Two of the most commonly used built-in data types in Python are the\u00a0list<\/em>\u00a0and the\u00a0tuple<\/em>.<\/p>\n Lists and tuples are part of the group of\u00a0sequence<\/em>\u00a0data types\u2014in other words, lists and tuples store one or more objects or\u00a0values<\/em>\u00a0in a specific order. The objects stored in a list or tuple can be of any type, including the\u00a0nothing<\/em>\u00a0type defined by the\u00a0 The big difference between lists and tuples is that lists are mutable, however, tuples are immutable. Meaning once tuples are created, objects can’t be added or removed, and the order cannot be changed. However, certain objects in tuples can be changed, as we’ll see later.<\/p>\n Creating a list or tuple is easy, here are some empty ones:<\/p>\n To create non-empty lists or tuples,\u00a0values<\/em>\u00a0are separated by commas:<\/p>\n Note:<\/strong>\u00a0To create a tuple with only one\u00a0value<\/em>, add a trailing comma to the value.<\/p>\n The values in lists and tuples, as with other sequence types, are referenced by an\u00a0index<\/em>. This is a number, referring to the sequence of the value, that begins with 0 for the first value. Such as the following:<\/p>\n Using an index below zero gets the values starting from the\u00a0end<\/em>\u00a0of the list or tuple:<\/p>\n Multiple values can be referenced by “slicing” the list or tuple (referencing a range[start:stop]):<\/p>\n Values<\/em>\u00a0for lists can be assigned with indexes (as long as the index already exists), but\u00a0not<\/strong>\u00a0for tuples:<\/p>\n Values can also be added to lists (and lists can be combined, or\u00a0concatenated<\/em>) with the ‘+’ operator, or with the standard\u00a0 Values can be removed from lists with the\u00a0 Assignment and deletion methods for lists don’t work for tuples, but concatenation works:<\/p>\n Even though tuples are not mutable like lists, with the slicing technique and a little creativity, tuples can be manipulated like lists:<\/p>\n In addition, if a tuple contains a list, the mutability of the list in that tuple is preserved:<\/p>\n Aside from the methods described here more exist for lists and tuples, but these cover the most common list and tuple operations. And remember, lists and tuples can be\u00a0nested<\/strong>\u00a0(can contain lists and tuples, and other data types that store sets of\u00a0values<\/em>, such as dictionaries), and can store different types simultaneously, making them very useful.<\/p>\n","protected":false},"excerpt":{"rendered":" Overview of Python Lists and Tuples Two of the most commonly used built-in data types in Python are the\u00a0list\u00a0and the\u00a0tuple. Lists and tuples are part of the group of\u00a0sequence\u00a0data types\u2014in other words, lists and tuples store one or more objects or\u00a0values\u00a0in a specific order. The objects stored in a list or tuple can be of…<\/p>\n","protected":false},"author":1,"featured_media":3498,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":""},"categories":[2],"tags":[],"jetpack_featured_media_url":"https:\/\/pythonarray.com\/wp-content\/uploads\/2021\/07\/Python-Lists-and-Tuples.png","jetpack-related-posts":[{"id":426,"url":"https:\/\/pythonarray.com\/python-programming-tuple\/","url_meta":{"origin":1910,"position":0},"title":"Python Programming \u2013 Tuple","date":"June 7, 2022","format":false,"excerpt":"You can learn about Tuples in Python\u00a0Programs with Outputs helped you to understand the language better. Python Programming \u2013 Tuple Tuple A tuple is a compound data type in Python. It is a sequence of multiple values in an ordered sequence. Tuples are very similar to lists, but tuples cannot\u2026","rel":"","context":"In "Python"","img":{"alt_text":"Python Programming \u2013 Tuple","src":"https:\/\/i1.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/05\/Python-Programming-\u2013-Tuple.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1661,"url":"https:\/\/pythonarray.com\/how-to-slice-lists-arrays-and-tuples-in-python\/","url_meta":{"origin":1910,"position":1},"title":"How to Slice Lists\/Arrays and Tuples in Python","date":"December 4, 2022","format":false,"excerpt":"So you've got an list, tuple or array and you want to get specific sets of sub-elements from it, without any long, drawn out\u00a0for\u00a0loops? Python has an amazing feature just for that called\u00a0slicing. Slicing can not only be used for lists, tuples or arrays, but custom data structures as well,\u2026","rel":"","context":"In "Python"","img":{"alt_text":"How to Slice ListsArrays and Tuples in Python","src":"https:\/\/i1.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/07\/How-to-Slice-ListsArrays-and-Tuples-in-Python.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":831,"url":"https:\/\/pythonarray.com\/python-programming-python-tuples\/","url_meta":{"origin":1910,"position":2},"title":"Python Programming - Python Tuples","date":"May 24, 2022","format":false,"excerpt":"Python Programming - Python Tuples In the Python programming language, a tuple is another important data structure. A tuple is similar to a Python list as studied in the previous section. The difference between tuple and list is that the elements in a list can be altered, whereas tuples are\u2026","rel":"","context":"In "Python"","img":{"alt_text":"Python Programming - Python Tuples","src":"https:\/\/i1.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/05\/Python-Programming-Python-Tuples.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2093,"url":"https:\/\/pythonarray.com\/python-tuples\/","url_meta":{"origin":1910,"position":3},"title":"Python : Tuples","date":"June 30, 2022","format":false,"excerpt":"Tuple is another data type in Python. A tuple consists of values separated by commas. Tuples are always enclosed in parentheses. Tuples are for immutable. Though tuples may seem similar to lists, they are often used in different situations and for different purposes. Empty tuples are constructed by an empty\u2026","rel":"","context":"In "Python"","img":{"alt_text":"Python Tuples","src":"https:\/\/i1.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/07\/Python-Tuples.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":437,"url":"https:\/\/pythonarray.com\/python-programming-tuple-functions\/","url_meta":{"origin":1910,"position":4},"title":"Python Programming - Tuple Functions","date":"December 2, 2022","format":false,"excerpt":"You can learn about\u00a0Tuples in Python\u00a0Programs with Outputs helped you to understand the language better. Python Programming - Tuple Functions Unlike Python lists, tuples do not have methods\/functions such as append ( ), remove ( ), extend ( ), insert ( ) and pop( ) due to their immutable nature.\u2026","rel":"","context":"In "Python"","img":{"alt_text":"Python Programming - Tuple Functions","src":"https:\/\/i0.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/05\/Python-Programming-Tuple-Functions.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1129,"url":"https:\/\/pythonarray.com\/tuples-in-python\/","url_meta":{"origin":1910,"position":5},"title":"Tuples in Python | Python List of Tuples","date":"June 16, 2022","format":false,"excerpt":"Python Tuples | List of Tuples Python Python Programming - Tuple Python Programming - Creation, Initialization and Accessing The Elements In A Tuple Python Programming - Tuple Functions Python Programming - Common Tuple operations","rel":"","context":"In "Python"","img":{"alt_text":"Tuples in Python Python List of Tuples","src":"https:\/\/i0.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/06\/Tuples-in-Python-Python-List-of-Tuples.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts\/1910"}],"collection":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/comments?post=1910"}],"version-history":[{"count":2,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts\/1910\/revisions"}],"predecessor-version":[{"id":3500,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts\/1910\/revisions\/3500"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/media\/3498"}],"wp:attachment":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/media?parent=1910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/categories?post=1910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/tags?post=1910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}None<\/code>\u00a0keyword.<\/p>\nCreating a Python List or Tuple<\/h3>\n
# Lists must be surrounded by brackets\r\n>>> emptylst = []\r\n# Tuples may or may not be surrounded by parenthesis\r\n>>> emptytup = ()<\/pre>\n
# Lists must be surrounded by brackets\r\n>>> lst = [1, 2, 3]\r\n>>> lst\r\n[1, 2, 3]\r\n# Tuples may or may not be surrounded by parenthesis\r\n>>> tup = 1, 2, 3\r\n>>> tup\r\n(1, 2, 3)\r\n>>> tup = ('one', 'two', 'three')\r\n>>> tup\r\n('one', 'two', 'three')<\/pre>\n# The length of this tuple is 1\r\n>>> tup2 = 0,\r\n>>> tup2\r\n(0,)<\/pre>\n
\n
Get Python List or Tuple Values<\/h3>\n
>>> lst[0]\r\n1\r\n>>> tup[1]\r\n'two'<\/pre>\n
>>> lst[-1]\r\n3\r\n>>> tup[-2]\r\n'two'<\/pre>\n
Slicing Python Lists and Tuples<\/h3>\n
>>> lst[0:2]\r\n[1, 2]\r\n# Note an out-of-range stopindex translates to the end\r\n>>> tup[1:5]\r\n('two', 'three')<\/pre>\nAssigning a Python List Value by Index<\/h3>\n
>>> lst[2] = 'three'\r\n>>> lst\r\n[1, 2, 'three']\r\n>>> tup[2] = 3\r\nTraceback (most recent call last):\r\n File \"<pyshell#68>\", line 1, in <module>\r\n tup[2] = 3\r\nTypeError: 'tuple' object does not support item assignment<\/pre>\n
Adding to a Python List<\/h3>\n
append<\/code>\u00a0method:<\/p>\n# concatenation, the same as lst = lst + [None]\r\n>>> lst += [None]\r\n>>> lst\r\n[1, 2, 'three', None]\r\n>>> lst.append(5)\r\n>>> lst\r\n[1, 2, 'three', None, 5]<\/pre>\n
The Python del Keyword for Lists<\/h3>\n
del<\/code>\u00a0keyword:<\/p>\n>>> del lst[3]\r\n>>> lst\r\n[1, 2, 'three', 5]\r\n# Slicing deletion; no stop index means through the end\r\n>>> del lst[2:]\r\n>>> lst\r\n[1, 2]<\/pre>\n
# Note only tuples can be added to tuples\r\n>>> tup += (4,)\r\n>>> tup\r\n('one', 'two', 'three', 4)<\/pre>\n# Almost like slice deletion\r\n>>> tup = tup[0:2]\r\n>>> tup\r\n('one', 'two')\r\n>>> tup2 += tup\r\n>>> tup2\r\n# almost like index assignment\r\n>>> tup2 = tup2[0:1] + (1,) + tup2[2:]\r\n>>> tup2\r\n(0, 1, 'two')<\/pre>\n>>> tup3 = 0, 'one', None, []\r\n>>> tup3[3].append('three')\r\n>>> tup3\r\n(0, 'one', None, ['three'])<\/pre>\n