{"id":2423,"date":"2023-07-22T08:18:35","date_gmt":"2023-07-22T08:18:35","guid":{"rendered":"https:\/\/statorials.org\/pt\/so-pode-usar-o-acessador-str-com-valores-de-string\/"},"modified":"2023-07-22T08:18:35","modified_gmt":"2023-07-22T08:18:35","slug":"so-pode-usar-o-acessador-str-com-valores-de-string","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/so-pode-usar-o-acessador-str-com-valores-de-string\/","title":{"rendered":"Como corrigir: s\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Um erro 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;\">AttributeError<\/span> : Can only use .str accessor with string values!\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Este erro normalmente ocorre quando voc\u00ea tenta substituir um padr\u00e3o em uma coluna de string de um DataFrame do pandas, mas a coluna com a qual voc\u00ea est\u00e1 trabalhando n\u00e3o \u00e9 na verdade uma string.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como corrigir esse erro na pr\u00e1tica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Como reproduzir o erro<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Suponha que temos o seguinte DataFrame do pandas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [6.5, 7.8, 8.0, 9.0, 7.5, 3.4, 6.6, 6.8],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tteam points assists rebounds\n0 A 6.5 5 11\n1 A 7.8 7 8\n2 A 8.0 7 10\n3 A 9.0 9 6\n4 B 7.5 12 6\n5 B 3.4 9 5\n6 B 6.6 9 9\n7 B 6.8 4 12<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Agora suponha que tentamos substituir cada casa decimal na coluna \u201cpontos\u201d por um espa\u00e7o:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#attempt to replace decimal in \"points\" column with a blank\n<\/span>df[' <span style=\"color: #ff0000;\">points<\/span> '] = df[' <span style=\"color: #ff0000;\">points<\/span> ']. <span style=\"color: #3366ff;\">str<\/span> . <span style=\"color: #3366ff;\">replace<\/span> (' <span style=\"color: #ff0000;\">.<\/span> ', '')\n\n<span style=\"color: #ff0000;\">AttributeError<\/span> : Can only use .str accessor with string values! \n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Estamos recebendo um erro porque a coluna &#8220;pontos&#8221; n\u00e3o \u00e9 uma coluna de string.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Como corrigir o erro<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">A maneira mais f\u00e1cil de contornar esse erro \u00e9 usar a fun\u00e7\u00e3o <strong>.astype(str)<\/strong> antes de tentar substituir valores na coluna \u201cpontos\u201d:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#replace decimal in \"points\" column with a blank\n<\/span>df[' <span style=\"color: #ff0000;\">points<\/span> '] = df[' <span style=\"color: #ff0000;\">points<\/span> ']. <span style=\"color: #3366ff;\">astype<\/span> (str). <span style=\"color: #3366ff;\">str<\/span> . <span style=\"color: #3366ff;\">replace<\/span> (' <span style=\"color: #ff0000;\">.<\/span> ', '')\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span>df\n\n\tteam points assists rebounds\n0 A 65 5 11\n1 A 78 7 8\n2 A 80 7 10\n3 A 90 9 6\n4 B 75 12 6\n5 B 34 9 5\n6 B 66 9 9\n7 B 68 4 12<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que todas as casas decimais da coluna &#8220;pontos&#8221; foram substitu\u00eddas e n\u00e3o estamos recebendo nenhum erro, pois utilizamos a fun\u00e7\u00e3o <strong>.astype(str)<\/strong> antes de tentar substituir os valores da coluna &#8220;pontos&#8221;.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa para a fun\u00e7\u00e3o <strong>replace()<\/strong> <a href=\"https:\/\/pandas.pydata.org\/docs\/reference\/api\/pandas.Series.str.replace.html\" target=\"_blank\" rel=\"noopener\">aqui<\/a> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como corrigir outros erros comuns em Python:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/erro-de-chave-do-pandas\/\" target=\"_blank\" rel=\"noopener\">Como corrigir KeyError em Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/valueerror-nao-pode-converter-float-nan-em-inteiro\/\" target=\"_blank\" rel=\"noopener\">Como corrigir: ValueError: n\u00e3o \u00e9 poss\u00edvel converter float NaN em int<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/os-operandos-nao-puderam-ser-transmitidos-com-os-formularios\/\" target=\"_blank\" rel=\"noopener\">Como corrigir: ValueError: os operandos n\u00e3o puderam ser transmitidos com formas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um erro que voc\u00ea pode encontrar ao usar Python \u00e9: AttributeError : Can only use .str accessor with string values! Este erro normalmente ocorre quando voc\u00ea tenta substituir um padr\u00e3o em uma coluna de string de um DataFrame do pandas, mas a coluna com a qual voc\u00ea est\u00e1 trabalhando n\u00e3o \u00e9 na verdade uma string. [&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-2423","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: s\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string \u2013 Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como corrigir o seguinte erro em Python: AttributeError: S\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string!\" \/>\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\/so-pode-usar-o-acessador-str-com-valores-de-string\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como corrigir: s\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string \u2013 Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como corrigir o seguinte erro em Python: AttributeError: S\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/so-pode-usar-o-acessador-str-com-valores-de-string\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T08:18:35+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\/so-pode-usar-o-acessador-str-com-valores-de-string\/\",\"url\":\"https:\/\/statorials.org\/pt\/so-pode-usar-o-acessador-str-com-valores-de-string\/\",\"name\":\"Como corrigir: s\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string \u2013 Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-22T08:18:35+00:00\",\"dateModified\":\"2023-07-22T08:18:35+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como corrigir o seguinte erro em Python: AttributeError: S\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string!\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/so-pode-usar-o-acessador-str-com-valores-de-string\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/so-pode-usar-o-acessador-str-com-valores-de-string\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/so-pode-usar-o-acessador-str-com-valores-de-string\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como corrigir: s\u00f3 \u00e9 poss\u00edvel usar o acessador .str com valores de string\"}]},{\"@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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