{"id":202288,"date":"2023-06-16T07:30:00","date_gmt":"2023-06-16T07:30:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=202288"},"modified":"2023-11-09T13:52:03","modified_gmt":"2023-11-09T13:52:03","slug":"elif-python-tout-savoir","status":"publish","type":"post","link":"https:\/\/datascientest.com\/elif-python-tout-savoir","title":{"rendered":"Fonction ELIF sur Python : Ce qu&rsquo;il faut retenir"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"202288\" class=\"elementor elementor-202288\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7adfdf0 e-flex e-con-boxed e-con\" data-id=\"7adfdf0\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bfa3ef1 elementor-widget elementor-widget-heading\" data-id=\"bfa3ef1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Le test d\u2019expressions conditionnelles est la base m\u00eame de la programmation. Si la structure if then else (si alors sinon) est inh\u00e9rente \u00e0 la plupart des langages, Python manipule une autre forme de condition : if elif else\u2026 Qu\u2019en est-il au juste ?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-79dab1a e-flex e-con-boxed e-con\" data-id=\"79dab1a\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1d6f091 elementor-widget elementor-widget-text-editor\" data-id=\"1d6f091\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><span style=\"font-weight: 400;\">Si vous avez appris \u00e0 \u00e9crire un programme informatique, et quel que soit votre niveau, vous savez qu\u2019un \u00e9l\u00e9ment essentiel de presque tout bloc de code est la structure conditionnelle.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Comment fonctionne-t-elle ? Une valeur particuli\u00e8re (la temp\u00e9rature, la date du jour\u2026) est soumise \u00e0 un test, gr\u00e2ce \u00e0 des <\/span><b>op\u00e9rateurs de comparaison<\/b><span style=\"font-weight: 400;\">. Une application d\u2019agriculture pourrait comparer le niveau d\u2019humidit\u00e9 \u00e0 une valeur et enclencher un arrosage si elle descend au-dessous d\u2019un certain niveau.<\/span><\/p><p><span style=\"font-weight: 400;\">Dans la quasi totalit\u00e9 des langages de programmation, le bloc de code courant repose sur l\u2019expression conditionnelle <\/span><b>if <\/b><span style=\"font-weight: 400;\">(si).<\/span><\/p><p style=\"padding-left: 80px;\"><strong>if niveau_humidit\u00e9 &lt; faible_humidit\u00e9:<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>arroser<\/strong><\/p><p><span style=\"font-weight: 400;\">Si la condition est v\u00e9rifi\u00e9e (d\u00e8s que le niveau d\u2019humidit\u00e9 descend en dessous de la valeur sp\u00e9cifi\u00e9e dans la variable faible_humidit\u00e9), alors l\u2019application d\u00e9clenche l\u2019arrosage. Si la condition est fausse, rien ne se passe.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-390d969 e-flex e-con-boxed e-con\" data-id=\"390d969\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9853905 elementor-widget elementor-widget-heading\" data-id=\"9853905\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">La structure if then else<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c3accfd elementor-widget elementor-widget-text-editor\" data-id=\"c3accfd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Habituellement, les langages de programmation reposent sur une structure fondamentale : <\/span><b>if <\/b><span style=\"font-weight: 400;\">(condition) then (action) <\/span><b>else <\/b><span style=\"font-weight: 400;\">(autre action).<\/span><\/p><p style=\"padding-left: 80px;\"><strong>if jour_de_la_semaine == \u201csamedi\u201d:<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>promotion = prix * 0,8<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>else:<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>promotion = prix * 0,9<\/strong><\/p><p><span style=\"font-weight: 400;\">Dans cet exemple, les articles en promotion sont vendus au 9\/10\u00e8me de leur prix du lundi au vendredi, et au 8\/10\u00e8me de leur prix le samedi.<\/span><\/p><p><span style=\"font-weight: 400;\">Dans un grand nombre de langages, c\u2019est la combinaison des deux clauses else et if qui donne la possibilit\u00e9 de tester toute une gamme de conditions. Nous avons donc cette forme:<\/span><\/p><p style=\"padding-left: 80px;\"><strong>if (condition):<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>action 1<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>else if (condition 2):<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>action 2<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>else if (condition 3):<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>action 3<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>(&#8230;)<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f3f13c elementor-widget elementor-widget-image\" data-id=\"1f3f13c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python1.png\" class=\"attachment-full size-full wp-image-202309\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python1.png 800w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python1-300x169.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python1-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e246c9 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"3e246c9\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Apprendre Python pour la Data Science<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7883f28 e-flex e-con-boxed e-con\" data-id=\"7883f28\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f35e358 elementor-widget elementor-widget-heading\" data-id=\"f35e358\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">La structure if elif else de Python<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5b3aaa elementor-widget elementor-widget-text-editor\" data-id=\"a5b3aaa\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La syntaxe de Python a introduit une autre expression conditionnelle, bien plus claire et maniable : <\/span><b>elif<\/b><span style=\"font-weight: 400;\">. Celle-ci permet \u00e9galement de tester \u00e0 la suite toute une s\u00e9rie de conditions, tandis que <\/span><b>else <\/b><span style=\"font-weight: 400;\">n\u2019entre en jeu que si aucune des conditions pr\u00e9c\u00e9dentes n\u2019a \u00e9t\u00e9 v\u00e9rifi\u00e9e.<\/span><\/p><p><span style=\"font-weight: 400;\">Si la premi\u00e8re condition sp\u00e9cifi\u00e9e par if n\u2019est pas satisfaite,\u00a0<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">alors une 2\u00e8me condition sp\u00e9cifi\u00e9e par <\/span><b>elif <\/b><span style=\"font-weight: 400;\">est test\u00e9e,\u00a0<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">potentielle une 3\u00e8me condition sp\u00e9cifi\u00e9 par <\/span><b>elif<\/b><span style=\"font-weight: 400;\">,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">potentiellement une 4\u00e8me sp\u00e9cifi\u00e9e elle aussi\u00a0 avec <\/span><b>elif<\/b><span style=\"font-weight: 400;\">,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">potentiellement davantage de conditions sp\u00e9cifi\u00e9es avec <\/span><b>elif<\/b><span style=\"font-weight: 400;\">.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\">Au bout du compte, une expression <b>else <\/b><span>unique prend en compte tous les cas de figures, non couverts par les expressions conditionnelles pr\u00e9c\u00e9dentes.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-98a1231 elementor-widget elementor-widget-text-editor\" data-id=\"98a1231\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Comme nous pouvons le voir, la structure if elif else proc\u00e8de par \u00e9limination. Une condition est test\u00e9e, puis la suivante, puis la suivante\u2026<\/span><\/p><p><span style=\"font-weight: 400;\">Elle a donc cette forme:<\/span><\/p><p style=\"padding-left: 80px;\"><strong>if (condition):<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>action 1<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>elif (condition 2):<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>action 2<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>elif (condition 3):<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>action 3<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>(&#8230;)<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>else (si aucune des conditions pr\u00e9c\u00e9dentes n\u2019est satisfaite):<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>action<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cf7e0fb e-flex e-con-boxed e-con\" data-id=\"cf7e0fb\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ac8ff80 elementor-widget elementor-widget-heading\" data-id=\"ac8ff80\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Un exemple d\u2019usage de elif<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cca0b81 elementor-widget elementor-widget-text-editor\" data-id=\"cca0b81\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Imaginons un concert de rock pour lequel, l\u2019organisateur a \u00e9tabli une fourchette de tarifs. Le prix des places d\u00e9pend de l\u2019\u00e2ge du spectateur. Les jeunes et tr\u00e8s jeunes, mais aussi les personnes proches de l\u2019\u00e2ge de la retraite b\u00e9n\u00e9ficient de tarifs avantageux. Les autres doivent d\u00e9bourser le prix fort.<\/span><\/p><p><span style=\"font-weight: 400;\">Nous pourrions avoir un bloc de code telle que celui-ci:<\/span><\/p><p style=\"padding-left: 80px;\"><strong>if \u00e2ge &lt; 10:<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>prix_de_la_place = 8<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>elif \u00e2ge &lt; 18:<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>prix_de_la_place = 20<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>elif \u00e2ge &gt; 60:<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>prix_de_la_place = 15<\/strong><\/p><p style=\"padding-left: 80px;\"><strong>else:<\/strong><\/p><p style=\"padding-left: 160px;\"><strong>prix_de_la_place = 35<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-521a31f elementor-widget elementor-widget-text-editor\" data-id=\"521a31f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">4 spectateurs se pr\u00e9sentent au guichet. Arnold a 5 ans et son cas est couvert par la condition sp\u00e9cifi\u00e9e par<\/span><b> if<\/b><span style=\"font-weight: 400;\">. Tancr\u00e8de pour sa part a 17 ans et sa situation correspond \u00e0 la <\/span><b>premi\u00e8re condition elif<\/b>. John a<span style=\"font-weight: 400;\"> 62 ans, et il va donc payer 15 euros conform\u00e9ment \u00e0 la <\/span><b>deuxi\u00e8me condition elif<\/b><span style=\"font-weight: 400;\">. Enfin, Jane qui a 34 ans tombe dans les autres cas de figures, sp\u00e9cifi\u00e9s ici avec <\/span><b>else<\/b><span style=\"font-weight: 400;\"> et elle va donc devoir payer le prix fort.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0eb4638 elementor-widget elementor-widget-image\" data-id=\"0eb4638\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python2.png\" class=\"attachment-full size-full wp-image-202311\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python2.png 800w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python2-300x169.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python2-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-861600e e-flex e-con-boxed e-con\" data-id=\"861600e\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-91a6f30 elementor-widget elementor-widget-heading\" data-id=\"91a6f30\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Les avantages d'utiliser Python<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c548821 elementor-widget elementor-widget-text-editor\" data-id=\"c548821\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Ici comme dans d\u2019autres situations, <a href=\"https:\/\/datascientest.com\/python-tout-savoir\">Python<\/a> nous propose un outil simple d\u2019usage, tr\u00e8s clair et rendant ais\u00e9 de d\u00e9bugger un bloc de code impliquant des expressions conditionnelles. La popularit\u00e9 de Python est d\u00fbe \u00e0 cette capacit\u00e9 de pouvoir \u00e9crire des instructions claires, faciles \u00e0 relire et \u00e0 d\u00e9chiffrer et la structure <\/span><b>if elif else<\/b><span style=\"font-weight: 400;\"> en est un excellent exemple. On comprend mieux pourquoi tant de d\u00e9veloppeurs en sont venus \u00e0 pr\u00e9f\u00e9rer Python \u00e0 Java\u2026<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9b139d elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"d9b139d\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">D\u00e9couvrir d'autres fonctions Python<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bffc3ac e-flex e-con-boxed e-con\" data-id=\"bffc3ac\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-17a6e65 elementor-widget elementor-widget-html\" data-id=\"17a6e65\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"La structure if elif else de Python\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"La syntaxe de Python a introduit une autre expression conditionnelle, bien plus claire et maniable : elif. Celle-ci permet \u00e9galement de tester \u00e0 la suite toute une s\u00e9rie de conditions, tandis que else n\u2019entre en jeu que si aucune des conditions pr\u00e9c\u00e9dentes n\u2019a \u00e9t\u00e9 v\u00e9rifi\u00e9e.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Les avantages d'utiliser Python\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Ici comme dans d\u2019autres situations, Python nous propose un outil simple d\u2019usage, tr\u00e8s clair et rendant ais\u00e9 de d\u00e9bugger un bloc de code impliquant des expressions conditionnelles. La popularit\u00e9 de Python est d\u00fbe \u00e0 cette capacit\u00e9 de pouvoir \u00e9crire des instructions claires, faciles \u00e0 relire et \u00e0 d\u00e9chiffrer et la structure if elif else en est un excellent exemple. On comprend mieux pourquoi tant de d\u00e9veloppeurs en sont venus \u00e0 pr\u00e9f\u00e9rer Python \u00e0 Java\u2026\"\r\n    }\r\n  }]\r\n}\r\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le test d\u2019expressions conditionnelles est la base m\u00eame de la programmation. Si la structure if then else (si alors sinon) est inh\u00e9rente \u00e0 la plupart des langages, Python manipule une autre forme de condition : if elif else\u2026 Qu\u2019en est-il au juste ? Si vous avez appris \u00e0 \u00e9crire un programme informatique, et quel que [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":202290,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fonction ELIF sur Python : Ce qu&#039;il faut retenir<\/title>\n<meta name=\"description\" content=\"Si la structure if then else (si alors sinon) est inh\u00e9rente \u00e0 la plupart des langages, Python manipule une autre forme de condition : if elif else\u2026 Qu\u2019en est-il au juste ?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/elif-python-tout-savoir\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fonction ELIF sur Python : Ce qu&#039;il faut retenir\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/elif-python-tout-savoir\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-16T07:30:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-09T13:52:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/05\/elif-python.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Raphael Kassel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Raphael Kassel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/elif-python-tout-savoir\",\"url\":\"https:\/\/datascientest.com\/elif-python-tout-savoir\",\"name\":\"Fonction ELIF sur Python : Ce qu'il faut retenir\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2023-06-16T07:30:00+00:00\",\"dateModified\":\"2023-11-09T13:52:03+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1\"},\"description\":\"Si la structure if then else (si alors sinon) est inh\u00e9rente \u00e0 la plupart des langages, Python manipule une autre forme de condition : if elif else\u2026 Qu\u2019en est-il au juste ?\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/elif-python-tout-savoir\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/#website\",\"url\":\"https:\/\/datascientest.com\/\",\"name\":\"Formation Data Science | DataScientest.com\",\"description\":\"Leader de la formation en Data Science\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1\",\"name\":\"Raphael Kassel\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg\",\"contentUrl\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg\",\"caption\":\"Raphael Kassel\"},\"description\":\"Raphael Kassel est le Head of Data Programs chez DataScientest. 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