{"id":1265,"date":"2020-04-15T06:15:21","date_gmt":"2020-04-15T13:15:21","guid":{"rendered":"https:\/\/renanmf.com\/?p=1265"},"modified":"2020-12-29T10:24:12","modified_gmt":"2020-12-29T13:24:12","slug":"python-tuple","status":"publish","type":"post","link":"https:\/\/renanmf.com\/python-tuple\/","title":{"rendered":"Python Tuple: a quick reference"},"content":{"rendered":"

A tuple is similar to the list: ordered, allows repetition of items.<\/p>\n

There is just one difference: a tuple is immutable.<\/p>\n

Initialization<\/h3>\n

Empty Tuple<\/h4>\n
people = ()<\/code><\/pre>\n
Tuple with initial values<\/h4>\n
people = ('Bob', 'Mary')<\/code><\/pre>\n
Adding in a Tuple<\/h3>\n
Tuples are immutable, if you try to add an item, you will see an error.<\/p>\n
people = ('Bob', 'Mary')\npeople[2] = 'Sarah'<\/code><\/pre>\n
Traceback (most recent call last):\n  File "<stdin>", line 1, in <module>\nTypeError: 'tuple' object does not support item assignment<\/code><\/pre>\n
Updating in a Tuple<\/h3>\n
Update an item will also return an error.<\/p>\n
But there is a trick, you can convert into a list, change the item and then convert it back to a tuple.<\/p>\n
people = ('Bob', 'Mary')\npeople_list = list(people)\npeople_list[1] = 'Sarah'\npeople = tuple(people_list)\nprint(people)<\/code><\/pre>\n
('Bob', 'Sarah')<\/code><\/pre>\n
Deleting in a Tuple<\/h3>\n
For the same reason you can’t add an item, you also can’t delete an item, since they are immutable.<\/p>\n
Retrieving in a Tuple<\/h3>\n
Use the index to reference the item.<\/p>\n
people = ('Bob', 'Mary')\nprint(people[1])<\/code><\/pre>\n
Mary<\/code><\/pre>\n
Iterating over Tuples<\/h3>\n
people = ('Bob', 'Mary')\nfor person in people:\n  print(person)<\/code><\/pre>\n
Bob\nMary<\/code><\/pre>\n
Check if a given item already exists in a Tuple<\/h3>\n
people = ('Bob', 'Mary')\n\nif 'Bob' in people:\n  print('Bob exists!')\nelse:\n  print('There is no Bob!')<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
A tuple is similar to the list: ordered, allows repetition of items. There is just one difference: a tuple is immutable. Initialization Empty Tuple people = () Tuple with initial values people = ('Bob', 'Mary') Adding in a Tuple Tuples are immutable, if you try to add an item, you will see an error. people […]<\/p>\n","protected":false},"author":3,"featured_media":742,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[6],"class_list":["post-1265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"yoast_head":"\nPython Tuple: a quick reference<\/title>\n<meta name=\"description\" content=\"In this tutorial I show how easy it is to work with tuples in Python.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/renanmf.com\/python-tuple\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Tuple: a quick reference\" \/>\n<meta property=\"og:description\" content=\"In this tutorial I show how easy it is to work with tuples in Python.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/renanmf.com\/python-tuple\/\" \/>\n<meta property=\"og:site_name\" content=\"Renan Moura - 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