{"id":1039,"date":"2022-05-03T18:07:37","date_gmt":"2022-05-03T18:07:37","guid":{"rendered":"https:\/\/bioeconomyinnovation.com\/index.php\/clase-7\/"},"modified":"2022-05-03T18:08:27","modified_gmt":"2022-05-03T18:08:27","slug":"clase-7","status":"publish","type":"page","link":"https:\/\/bioeconomyinnovation.com\/index.php\/clase-7\/","title":{"rendered":"Clase 7"},"content":{"rendered":"
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DICCIONARIO Y LISTAS<\/h1>\n

Diccionarios<\/h2>\n

Los diccionarios nos permiten almacenar un conjuntos de mapeos mediantes una key<\/em><\/strong> y un valor<\/em><\/strong> y van dentro de {}:<\/p>\n

La sintaxis es:<\/p>\n

          dic_1 = {key:valor}<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n
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In\u00a0[2]:<\/div>\n
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dic<\/span> =<\/span>{<\/span>'cosa1'<\/span>:<\/span> 1<\/span>,<\/span> 'cosa2'<\/span>:<\/span> 2<\/span>,<\/span> 'cosa'<\/span>:<\/span> 3<\/span>}<\/span>\n\nprint<\/span> (<\/span>dic<\/span>)<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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{'key1': 1, 'key2': 2, 'key': 3}\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Si deseamos imprimir el valor de cualquier key, lo haremos llamando la key:<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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In\u00a0[3]:<\/div>\n
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dic_1<\/span> =<\/span> {<\/span>'cosa1'<\/span>:<\/span> 1<\/span>,<\/span> 'cosa2'<\/span>:<\/span> 2<\/span>,<\/span> 'cosa'<\/span>:<\/span> 3<\/span>}<\/span>\n\nprint<\/span> (<\/span>dic_1<\/span>[<\/span>'cosa1'<\/span>])<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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1\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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El llenado de un diccionario puede ser como lo hicmos en el ejemplo anterior o ir agregaando uno a uno por separado, por ejemplo:<\/p>\n
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  • Declaramos un diccionario vac\u00edo, en este caso le pondremos de nombre men\u00fa<\/li>\n
  • En la segunda l\u00ednea agregamos la key Pozole con su valor de 35.67 y de la misma manera podemos seguir agregando<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n
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    In\u00a0[5]:<\/div>\n
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    menu<\/span> =<\/span> {}<\/span>\n\nmenu<\/span>[<\/span>'Pozole'<\/span>]<\/span>=<\/span> 35.67<\/span>\nmenu<\/span> [<\/span>'Tacos'<\/span>]<\/span>=<\/span> 20.00<\/span>\nmenu<\/span>[<\/span>'Tortas'<\/span>]<\/span>=<\/span> 50.50<\/span>\nmenu<\/span> [<\/span>'Licuados'<\/span>]<\/span>=<\/span> 45.60<\/span>\n\nprint<\/span>(<\/span>menu<\/span>)<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    {'Pozole': 35.67, 'Tacos': 20.0, 'Tortas': 50.5, 'Licuados': 45.6}\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    <\/div>\n
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    Ahora Aprenderemos la funci\u00f3n de una de las operacionesde python que se llama len(), la cual nos va a imprimir el n\u00famero de elementos en nuestro diccionario creado (Usaremos el mismo diccionario para el ejemplo).<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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    In\u00a0[6]:<\/div>\n
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    menu<\/span> =<\/span> {}<\/span>\n\nmenu<\/span>[<\/span>'Pozole'<\/span>]<\/span>=<\/span> 35.67<\/span>\nmenu<\/span> [<\/span>'Tacos'<\/span>]<\/span>=<\/span> 20.00<\/span>\nmenu<\/span>[<\/span>'Tortas'<\/span>]<\/span>=<\/span> 50.50<\/span>\nmenu<\/span> [<\/span>'Licuados'<\/span>]<\/span>=<\/span> 45.60<\/span>\n\nprint<\/span>(<\/span>len<\/span>(<\/span>menu<\/span>))<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    4\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    Otro m\u00e9todo importante es el uso del delate, que nos ayuda a eliminar un elemeto del diccionario, eliminando la Key<\/em><\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n
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    In\u00a0[10]:<\/div>\n
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    zoo_animals<\/span> =<\/span> {<\/span>'unicornio'<\/span>:<\/span> 'casa de dulces'<\/span>,<\/span> 'Jirafa'<\/span>:<\/span> '\u00c1boles grandes'<\/span>,<\/span> 'Tigre'<\/span>:<\/span> 'Selva'<\/span>,<\/span> 'Jaguar'<\/span>:<\/span> 'Selva dulce'<\/span> }<\/span>\n\ndel<\/span> zoo_animals<\/span>[<\/span>'unicornio'<\/span>]<\/span>\n\nprint<\/span> (<\/span>zoo_animals<\/span>)<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    {'Jirafa': '\u00c1boles grandes', 'Tigre': 'Selva', 'Jaguar': 'Selva dulce'}\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    Como podemos notar, se elimin\u00f3 la key unicornio con su valor de casa de dulces<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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    Dentro de un diccionario se puede cambiar el valor de cualquier Key. Para esto debemos de tener claro de que key se va a cambiar e su valor.<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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    In\u00a0[13]:<\/div>\n
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    Horario<\/span> =<\/span> {<\/span>'Historia'<\/span>:<\/span> 'virtual'<\/span>,<\/span> 'F\u00edsica aplicada'<\/span>:<\/span> 'Presencial'<\/span>,<\/span> 'L\u00f3gica programada'<\/span>:<\/span> 'Presencial'<\/span>,<\/span> 'matem\u00e1ticas'<\/span>:<\/span> 'Presencial'<\/span>}<\/span>\n\nHorario<\/span>[<\/span>'matem\u00e1ticas'<\/span>]<\/span>=<\/span> 'Virtual'<\/span>\n\nprint<\/span> (<\/span>Horario<\/span>)<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    {'Historia': 'virtual', 'F\u00edsica aplicada': 'Presencial', 'L\u00f3gica programada': 'Presencial', 'matem\u00e1ticas': 'Virtual'}\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    <\/div>\n
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    • En la primer l\u00ednea de c\u00f3digo tenemos nuestro diccionario con sus respectivos Keys y valores<\/li>\n
    • En la segunda l\u00ednea de c\u00f3digo decimos el valor de que Key queremos que se haga el cambio. Por ejemplo en este caso de la Key matem\u00e1ticas le cambiamos su valor a virtual. Antes de tener esta opci\u00f3n la Key maetm\u00e1ticas ten\u00eda el valor de Presencial.<\/li>\n
    • Por \u00faltimo imprimimos el diccionario<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n
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      Por \u00faltimo veremos la aplicaci\u00f3n de remove y sort. Remove es para eliminar un elemento de nuestro diccionario y sort para odermarlos.<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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      In\u00a0[19]:<\/div>\n
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      cotizaciones<\/span> =<\/span> {<\/span>'Yuri'<\/span>:<\/span> 20000<\/span>,<\/span> 'Yuridia'<\/span>:<\/span> 100000<\/span>,<\/span> 'Ana gabriel'<\/span>:<\/span> 40000<\/span>,<\/span> 'Shakira'<\/span>:<\/span> 10000<\/span>}<\/span>\n# Eliminamos a yuri de nuestro diccionario <\/span>\n\ncotizaciones<\/span>.<\/span>pop<\/span>(<\/span>'Yuri'<\/span>,<\/span> 20000<\/span>)<\/span>\n\nprint<\/span> (<\/span>cotizaciones<\/span>)<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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      {'Yuridia': 100000, 'Ana gabriel': 40000, 'Shakira': 10000}\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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      Para diccionarios usamos pop y para listas remove<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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      Listas<\/h2>\n
      Las lista es una estructura de datos y un dato en python con caracter\u00edsticas especiales. Estos nos permiten alamacenar enteros cadenas, y mixtos. Estos van encerrados en [].<\/p>\n
      Las listas tienen su m\u00e9todos que se deben utilizar. El primero que veremos es append()<\/strong>, el cual nos permita agregar nuevos elementos a la lista.<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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      In\u00a0[20]:<\/div>\n
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      lis_1<\/span>=<\/span> [<\/span>24<\/span>,<\/span>65<\/span>,<\/span>87<\/span>,<\/span> 'Marcos'<\/span>,<\/span> 34<\/span>]<\/span>\n\nlis_1<\/span>.<\/span>append<\/span>(<\/span>'Omar'<\/span>)<\/span>\n\nprint<\/span> (<\/span>lis_1<\/span>)<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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      [24, 65, 87, 'Marcos', 34, 'Omar']\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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      <\/div>\n
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      • En la primer l\u00ednea de c\u00f3digo formamos nuestra lista,<\/li>\n
      • En la segunda l\u00ednea de c\u00f3digo le decimos que agregemos Omar<\/strong> a la lista creada prveviamente que es lis_1<\/li>\n
      • Por \u00faltimo imprimimos la lista<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n
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         \n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
        DICCIONARIO Y LISTAS Diccionarios Los diccionarios nos permiten almacenar un conjuntos de mapeos mediantes una…<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/pages\/1039"}],"collection":[{"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/comments?post=1039"}],"version-history":[{"count":4,"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/pages\/1039\/revisions"}],"predecessor-version":[{"id":1043,"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/pages\/1039\/revisions\/1043"}],"wp:attachment":[{"href":"https:\/\/bioeconomyinnovation.com\/index.php\/wp-json\/wp\/v2\/media?parent=1039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}