{"id":355,"date":"2024-10-24T18:33:48","date_gmt":"2024-10-24T18:33:48","guid":{"rendered":"https:\/\/equipomedios.com\/blog\/?p=355"},"modified":"2024-10-18T18:35:18","modified_gmt":"2024-10-18T18:35:18","slug":"tipos-de-datos-tipo-tuplas-python","status":"publish","type":"post","link":"https:\/\/equipomedios.com\/blog\/tipos-de-datos-tipo-tuplas-python\/","title":{"rendered":"Tipos de Datos | Tipo Tuplas | Python"},"content":{"rendered":"

Tipo tuplas<\/h1>\n

Las tuplas son objetos de tipo\u00a0secuencia<\/em>, espec\u00edficamente es un tipo de dato\u00a0lista<\/span>\u00a0inmutable. Esta no puede modificarse de ning\u00fan modo despu\u00e9s de su creaci\u00f3n.<\/p>\n

<\/span><\/p>\n

M\u00e9todos<\/h2>\n

Son muy similares a las\u00a0listas<\/span>\u00a0y comparten varias de sus funciones y m\u00e9todos integrados, aunque su principal diferencia es que son inmutables. El objeto de tipo\u00a0tupla<\/em>\u00a0integra una serie de m\u00e9todos integrados a continuaci\u00f3n:<\/p>\n

<\/span><\/p>\n

count()<\/h3>\n

Este m\u00e9todo recibe un elemento como argumento, y cuenta la cantidad de veces que aparece en la tupla.<\/p>\n

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>>> <\/span>valores<\/span> =<\/span> (<\/span>\"Python\"<\/span>,<\/span> True<\/span>,<\/span> \"Zope\"<\/span>,<\/span> 5<\/span>)<\/span>\r\n>>> <\/span>print<\/span> \"True ->\"<\/span>,<\/span> valores<\/span>.<\/span>count<\/span>(<\/span>True<\/span>)<\/span>\r\nTrue -> 1<\/span>\r\n>>> <\/span>print<\/span> \"'Zope' ->\"<\/span>,<\/span> valores<\/span>.<\/span>count<\/span>(<\/span>'Zope'<\/span>)<\/span>\r\n'Zope' -> 1<\/span>\r\n>>> <\/span>print<\/span> \"5 ->\"<\/span>,<\/span> valores<\/span>.<\/span>count<\/span>(<\/span>5<\/span>)<\/span>\r\n5 -> 1<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n
<\/span><\/p>\n
index()<\/h3>\n
Comparte el mismo m\u00e9todo\u00a0index()<\/span>\u00a0del tipo lista. Este m\u00e9todo recibe un elemento como argumento, y devuelve el \u00edndice de su primera aparici\u00f3n en la tupla.<\/p>\n
\n
\n
>>> <\/span>valores<\/span> =<\/span> (<\/span>\"Python\"<\/span>,<\/span> True<\/span>,<\/span> \"Zope\"<\/span>,<\/span> 5<\/span>)<\/span>\r\n>>> <\/span>print<\/span> valores<\/span>.<\/span>index<\/span>(<\/span>True<\/span>)<\/span>\r\n1<\/span>\r\n>>> <\/span>print<\/span> valores<\/span>.<\/span>index<\/span>(<\/span>5<\/span>)<\/span>\r\n3<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n
El m\u00e9todo devuelve un excepci\u00f3n\u00a0ValueError<\/span>\u00a0si el elemento no se encuentra en la tupla, o en el entorno definido.<\/p>\n
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>>> <\/span>valores<\/span> =<\/span> (<\/span>\"Python\"<\/span>,<\/span> True<\/span>,<\/span> \"Zope\"<\/span>,<\/span> 5<\/span>)<\/span>\r\n>>> <\/span>print<\/span> valores<\/span>.<\/span>index<\/span>(<\/span>4<\/span>)<\/span>\r\nTraceback (most recent call last):<\/span>\r\n  File \"<stdin>\"<\/span>, line 1<\/span>, in <module><\/span>\r\nValueError<\/span>: tuple.index(x): x not in tuple<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Convertir a tuplas<\/h2>\n
Para convertir a\u00a0tipos tuplas<\/em>\u00a0debe usar la funci\u00f3n\u00a0tuple()<\/span>, la cual\u00a0est\u00e1 integrada<\/span>\u00a0en el interprete Python.<\/p>\n
\n
Truco<\/p>\n
Para m\u00e1s informaci\u00f3n consulte las funciones integradas para\u00a0operaciones de secuencias<\/span>.<\/p>\n<\/div>\n<\/div>\n
<\/span><\/p>\n
Ejemplos<\/h2>\n
A continuaci\u00f3n, se presentan algunos ejemplos de su uso:<\/p>\n
Ejemplo de definir simple de tupla<\/strong><\/p>\n
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tupla<\/span> =<\/span> 12345<\/span>,<\/span> 54321<\/span>,<\/span> 'hola!'<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n
Ejemplo de definir tuplas anidadas<\/strong><\/p>\n
\n
\n
otra<\/span> =<\/span> tupla<\/span>,<\/span> (<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>)<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n
Operaci\u00f3n asignar de valores de una tupla en variables<\/strong><\/p>\n
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\n
x<\/span>,<\/span> y<\/span>,<\/span> z<\/span> =<\/span> tupla<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n
Cuidar seguimiento del n\u00famero de la numeraci\u00f3n<\/strong><\/p>\n
Una tarea com\u00fan es iterar sobre una secuencia mientras cuidas el seguimiento de la numeraci\u00f3n de un elemento.<\/p>\n
Podr\u00eda usar un bucle\u00a0while<\/span><\/code>\u00a0con un contador o un bucle\u00a0for<\/span><\/code>\u00a0usando la funci\u00f3n\u00a0range()<\/span>\u00a0y la funci\u00f3n\u00a0len()<\/span>:<\/p>\n
\n
\n
>>> <\/span>tecnologias<\/span> =<\/span> (<\/span>'Zope'<\/span>,<\/span> 'Plone'<\/span>,<\/span> 'Pyramid'<\/span>)<\/span>\r\n>>> <\/span>for<\/span> i<\/span> in<\/span> range<\/span>(<\/span>0<\/span>,<\/span> len<\/span>(<\/span>tecnologias<\/span>)):<\/span>\r\n... <\/span>    print<\/span> i<\/span>,<\/span> tecnologias<\/span>[<\/span>i<\/span>]<\/span>\r\n...<\/span>\r\n0 Zope<\/span>\r\n1 Plone<\/span>\r\n2 Pyramid<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n
Pero, Python provee la palabra reservada\u00a0enumerate<\/span><\/code>\u00a0para esto:<\/p>\n
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\n
print<\/span> (<\/span>\"<\/span>\\n<\/span>Iterar tupla con funci\u00f3n enumerate\"<\/span>)<\/span>\r\nprint<\/span> (<\/span>\"==================================<\/span>\\n<\/span>\"<\/span>)<\/span>\r\n\r\nfor<\/span> index<\/span>,<\/span> item<\/span> in<\/span> enumerate<\/span>(<\/span>conexion_completa<\/span>):<\/span>\r\n    print<\/span> (<\/span>index<\/span>,<\/span> item<\/span>)<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n
Caso real de conexi\u00f3n a BD<\/strong><\/p>\n
A continuaci\u00f3n, un ejemplo m\u00e1s apegado a la realidad que busca establecer una conexi\u00f3n a una BD:<\/p>\n
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print<\/span> (<\/span>\"<\/span>\\n<\/span>Definiendo conexi\u00f3n a BD MySQL\"<\/span>)<\/span>\r\nprint<\/span> (<\/span>\"==============================<\/span>\\n<\/span>\"<\/span>)<\/span>\r\n\r\nconexion_bd<\/span> =<\/span> \"127.0.0.1\"<\/span>,<\/span>\"root\"<\/span>,<\/span>\"qwerty\"<\/span>,<\/span>\"nomina\"<\/span>,<\/span>\r\nprint<\/span> (<\/span>\"Conexi\u00f3n t\u00edpica:\"<\/span>,<\/span> conexion_bd<\/span>)<\/span>\r\nprint<\/span> (<\/span>type<\/span>(<\/span>conexion_bd<\/span>))<\/span>\r\nconexion_completa<\/span> =<\/span> conexion_bd<\/span>,<\/span> \"3307\"<\/span>,<\/span>\"10\"<\/span>,<\/span>\r\nprint<\/span> (<\/span>\"<\/span>\\n<\/span>Conexi\u00f3n con par\u00e1metros adicionales:\"<\/span>,<\/span> conexion_completa<\/span>)<\/span>\r\nprint<\/span> (<\/span>type<\/span>(<\/span>conexion_completa<\/span>))<\/span>\r\n\r\nprint<\/span> (<\/span>\"<\/span>\\n<\/span>\"<\/span>)<\/span>\r\n\r\nprint<\/span> (<\/span>\"IP de la BD:\"<\/span>,<\/span>  conexion_completa<\/span>[<\/span>0<\/span>][<\/span>0<\/span>])<\/span>\r\nprint<\/span> (<\/span>\"Usuario de la BD:\"<\/span>,<\/span>  conexion_completa<\/span>[<\/span>0<\/span>][<\/span>1<\/span>])<\/span>\r\nprint<\/span> (<\/span>\"Contrase\u00f1a de la BD:\"<\/span>,<\/span>  conexion_completa<\/span>[<\/span>0<\/span>][<\/span>2<\/span>])<\/span>\r\nprint<\/span> (<\/span>\"Nombre de la BD:\"<\/span>,<\/span>  conexion_completa<\/span>[<\/span>0<\/span>][<\/span>3<\/span>])<\/span>\r\nprint<\/span> (<\/span>\"Puerto de conexi\u00f3n:\"<\/span>,<\/span> conexion_completa<\/span>[<\/span>1<\/span>])<\/span>\r\nprint<\/span> (<\/span>\"Tiempo de espera en conexi\u00f3n:\"<\/span>,<\/span> conexion_completa<\/span>[<\/span>2<\/span>])<\/span>\r\n\r\nprint<\/span> (<\/span>\"\"\"<\/span>\\n<\/span>M\u00e1s informaci\u00f3n acerca de MySQL y Python <\/span>\\<\/span>\r\nhttp:\/\/mysql-python.sf.net\/MySQLdb.html<\/span>\\n<\/span>\"\"\"<\/span>)<\/span><\/pre>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
Tipo tuplas Las tuplas son objetos de tipo\u00a0secuencia, espec\u00edficamente es un tipo de dato\u00a0lista\u00a0inmutable. Esta no puede modificarse de ning\u00fan modo despu\u00e9s de su creaci\u00f3n. M\u00e9todos Son muy similares a las\u00a0listas\u00a0y comparten varias de sus funciones y m\u00e9todos integrados, aunque su principal diferencia es que son inmutables. El objeto de tipo\u00a0tupla\u00a0integra una serie de m\u00e9todos […]<\/p>\n","protected":false},"author":1,"featured_media":331,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[39,40],"tags":[],"class_list":["post-355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programacion","category-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/equipomedios.com\/blog\/wp-content\/uploads\/2024\/08\/python-logo-master-v3-TM.png?fit=601%2C203&ssl=1","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/posts\/355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/comments?post=355"}],"version-history":[{"count":1,"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/posts\/355\/revisions"}],"predecessor-version":[{"id":356,"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/posts\/355\/revisions\/356"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/media\/331"}],"wp:attachment":[{"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/media?parent=355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/categories?post=355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/equipomedios.com\/blog\/wp-json\/wp\/v2\/tags?post=355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}