{"id":1756,"date":"2023-07-25T02:54:34","date_gmt":"2023-07-25T02:54:34","guid":{"rendered":"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/"},"modified":"2023-07-25T02:54:34","modified_gmt":"2023-07-25T02:54:34","slug":"nome-erro-nome-np-nao-esta-definido","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/","title":{"rendered":"Como corrigir: o nome do erro &#39;np&#39; n\u00e3o est\u00e1 definido"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Um dos erros mais comuns que voc\u00ea pode encontrar ao usar Python \u00e9:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #ff0000;\">NameError<\/span> : name 'np' is not defined<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Este erro ocorre quando voc\u00ea importa a biblioteca python <a href=\"https:\/\/numpy.org\/\" target=\"_blank\" rel=\"noopener\">NumPy<\/a> , mas n\u00e3o consegue alias para <strong>np<\/strong> ao import\u00e1-la.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir ilustram como esse problema ocorre e como resolv\u00ea-lo.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: importar numpy<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Digamos que voc\u00ea importe a biblioteca NumPy usando o seguinte c\u00f3digo:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Se voc\u00ea tentar definir uma matriz numpy de valores, receber\u00e1 o seguinte erro:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#define numpy array<\/span>\nx = np. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">normal<\/span> (loc=0, scale=1, size=20)\n\n<span style=\"color: #008080;\">#attempt to print values in array\n<\/span><span style=\"color: #993300;\">print<\/span> (x)\n\nTraceback (most recent call last): \n<span style=\"color: #339966;\">----&gt;<\/span> 1 x = np.random.normal(loc=0, scale=1, size=20)\n      2 print(s)\n\n<span style=\"color: #ff0000;\">NameError<\/span> : name 'np' is not defined\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Para corrigir esse erro, voc\u00ea deve fornecer o alias de <strong>np<\/strong> ao importar NumPy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #000000;\"><span style=\"color: #008080;\">#define numpy array\n<\/span>x = np. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">normal<\/span> (loc=0, scale=1, size=20)\n\n<span style=\"color: #008080;\">#print values in array\n<\/span><span style=\"color: #993300;\">print<\/span> (x)\n\n[-0.93937656 -0.49448118 -0.16772964 0.44939978 -0.80577905 0.48042484\n  0.30175551 -0.15672656 -0.26931062 0.38226115 1.4472055 -0.13668984\n -0.74752684 1.6729974 2.25824518 0.77424489 0.67853607 1.46739364\n  0.14647622 0.87787596]<\/span>\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: de importa\u00e7\u00e3o numpy *<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Digamos que voc\u00ea importe todas as fun\u00e7\u00f5es da biblioteca NumPy usando o seguinte c\u00f3digo:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">from<\/span> numpy <span style=\"color: #008000;\">import<\/span> *<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Se voc\u00ea tentar definir uma matriz numpy de valores, receber\u00e1 o seguinte erro:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#define numpy array<\/span>\nx = np. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">normal<\/span> (loc=0, scale=1, size=20)\n\n<span style=\"color: #008080;\">#attempt to print values in array\n<\/span><span style=\"color: #993300;\">print<\/span> (x)\n\nTraceback (most recent call last): \n<span style=\"color: #339966;\">----&gt;<\/span> 1 x = np.random.normal(loc=0, scale=1, size=20)\n      2 print(s)\n\n<span style=\"color: #ff0000;\">NameError<\/span> : name 'np' is not defined\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Para corrigir esse erro, voc\u00ea deve fornecer o alias de <strong>np<\/strong> ao importar NumPy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #000000;\"><span style=\"color: #008080;\">#define numpy array\n<\/span>x = np. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">normal<\/span> (loc=0, scale=1, size=20)\n\n<span style=\"color: #008080;\">#print values in array\n<\/span><span style=\"color: #993300;\">print<\/span> (x)\n\n[-0.93937656 -0.49448118 -0.16772964 0.44939978 -0.80577905 0.48042484\n  0.30175551 -0.15672656 -0.26931062 0.38226115 1.4472055 -0.13668984\n -0.74752684 1.6729974 2.25824518 0.77424489 0.67853607 1.46739364\n  0.14647622 0.87787596]<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Alternativamente, voc\u00ea pode optar por n\u00e3o usar a sintaxe <strong>np<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy\n\n<span style=\"color: #000000;\"><span style=\"color: #008080;\">#define numpy array\n<\/span>x = numpy. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">normal<\/span> (loc=0, scale=1, size=20)\n\n<span style=\"color: #008080;\">#print values in array\n<\/span><span style=\"color: #993300;\">print<\/span> (x)\n\n[-0.93937656 -0.49448118 -0.16772964 0.44939978 -0.80577905 0.48042484\n  0.30175551 -0.15672656 -0.26931062 0.38226115 1.4472055 -0.13668984\n -0.74752684 1.6729974 2.25824518 0.77424489 0.67853607 1.46739364\n  0.14647622 0.87787596]<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Nota:<\/strong> A sintaxe &#8220;import numpy as np&#8221; \u00e9 comumente usada porque fornece uma maneira mais concisa de usar fun\u00e7\u00f5es NumPy. Em vez de digitar \u201cnumpy\u201d todas as vezes, voc\u00ea pode simplesmente digitar \u201cnp\u201d, que \u00e9 mais r\u00e1pido e f\u00e1cil de ler.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/nameerror-pd-nome-nao-esta-definido\/\" target=\"_blank\" rel=\"noopener\">Como corrigir: NameError &#8216;pd&#8217; n\u00e3o est\u00e1 definido<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/nenhum-modulo-chamado-pandas\/\" target=\"_blank\" rel=\"noopener\">Como corrigir: Nenhum m\u00f3dulo chamado pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um dos erros mais comuns que voc\u00ea pode encontrar ao usar Python \u00e9: NameError : name &#8216;np&#8217; is not defined Este erro ocorre quando voc\u00ea importa a biblioteca python NumPy , mas n\u00e3o consegue alias para np ao import\u00e1-la. Os exemplos a seguir ilustram como esse problema ocorre e como resolv\u00ea-lo. Exemplo 1: importar numpy [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1756","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Como corrigir: NameError &#039;np&#039; n\u00e3o est\u00e1 definido<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como corrigir o seguinte erro em Python: NameError &#039;np&#039; n\u00e3o est\u00e1 definido, com v\u00e1rios exemplos.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como corrigir: NameError &#039;np&#039; n\u00e3o est\u00e1 definido\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como corrigir o seguinte erro em Python: NameError &#039;np&#039; n\u00e3o est\u00e1 definido, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T02:54:34+00:00\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/\",\"url\":\"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/\",\"name\":\"Como corrigir: NameError &#39;np&#39; n\u00e3o est\u00e1 definido\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-25T02:54:34+00:00\",\"dateModified\":\"2023-07-25T02:54:34+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como corrigir o seguinte erro em Python: NameError &#39;np&#39; n\u00e3o est\u00e1 definido, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/nome-erro-nome-np-nao-esta-definido\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como corrigir: o nome do erro &#39;np&#39; n\u00e3o est\u00e1 definido\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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