{"id":2974,"date":"2023-07-19T20:06:19","date_gmt":"2023-07-19T20:06:19","guid":{"rendered":"https:\/\/statorials.org\/pl\/typeerror-nieobslugiwane-typy-doperand-dla-str-i-int\/"},"modified":"2023-07-19T20:06:19","modified_gmt":"2023-07-19T20:06:19","slug":"typeerror-nieobslugiwane-typy-doperand-dla-str-i-int","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/typeerror-nieobslugiwane-typy-doperand-dla-str-i-int\/","title":{"rendered":"Jak naprawi\u0107: typeerror: nieobs\u0142ugiwane typy operand\u00f3w dla \u2013: \u201estr\u201d i \u201eint\u201d"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">B\u0142\u0105d, kt\u00f3ry mo\u017cesz napotka\u0107 podczas korzystania z Pythona, to:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #ff0000;\">TypeError <span style=\"color: #000000;\">: unsupported operand type(s) for -: 'str' and 'int'\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ten b\u0142\u0105d wyst\u0119puje podczas pr\u00f3by odejmowania ze zmienn\u0105 \u0142a\u0144cuchow\u0105 i zmienn\u0105 numeryczn\u0105.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Poni\u017cszy przyk\u0142ad pokazuje, jak w praktyce rozwi\u0105za\u0107 ten b\u0142\u0105d.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Jak odtworzy\u0107 b\u0142\u0105d<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 DataFrame pand:<\/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', 'B', 'C', 'D', 'E', 'F', 'G', 'H'],\n                   ' <span style=\"color: #ff0000;\">points_for<\/span> ': ['18', '22', '19', '14', '14', '11', '20', '28'],\n                   ' <span style=\"color: #ff0000;\">points_against<\/span> ': [5, 7, 17, 22, 12, 9, 9, 4]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points_for points_against\n0 to 18 5\n1 B 22 7\n2 C 19 17\n3 D 14 22\n4 E 14 12\n5 F 11 9\n6 G 20 9\n7:28 a.m. 4\n\n<span style=\"color: #008080;\">#view data type of each column<\/span>\n<span style=\"color: #008000;\">print<\/span> ( <span style=\"color: #3366ff;\">df.dtypes<\/span> )\n\nteam object\npoints_for object\npoints_against int64\ndtype:object\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy teraz, \u017ce pr\u00f3bujemy odj\u0105\u0107 kolumn\u0119 <strong>punkty_przeciwko<\/strong> od kolumny <strong>punkty_za<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\"><span style=\"color: #008080;\">#attempt to perform subtraction\n<\/span><span style=\"color: #000000;\">df[' <span style=\"color: #ff0000;\">diff<\/span> '] = df. <span style=\"color: #3366ff;\">points_for<\/span> - df. <span style=\"color: #3366ff;\">points_against\n\n<span style=\"color: #000000;\"><span style=\"color: #ff0000;\">TypeError<\/span> : unsupported operand type(s) for -: 'str' and 'int'\n<\/span><\/span><\/span><\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Otrzymujemy <strong>b\u0142\u0105d TypeError<\/strong> , poniewa\u017c kolumna <strong>\u201epoints_for\u201d<\/strong> jest ci\u0105giem znak\u00f3w, a kolumna <strong>\u201epoints_against\u201d<\/strong> jest liczb\u0105.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Aby wykona\u0107 odejmowanie, obie kolumny musz\u0105 by\u0107 liczbami.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Jak naprawi\u0107 b\u0142\u0105d<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Aby rozwi\u0105za\u0107 ten b\u0142\u0105d, mo\u017cemy u\u017cy\u0107 <strong>funkcji .astype(int)<\/strong> w celu przekonwertowania kolumny <strong>punkty_for<\/strong> na liczb\u0119 ca\u0142kowit\u0105 przed wykonaniem odejmowania:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#convert points_for column to integer\n<\/span>df[' <span style=\"color: #ff0000;\">points_for<\/span> '] = df[' <span style=\"color: #ff0000;\">points_for<\/span> ']. <span style=\"color: #3366ff;\">astype<\/span> (int)\n\n<span style=\"color: #008080;\">#perform subtraction\n<\/span>df[' <span style=\"color: #ff0000;\">diff<\/span> '] = df. <span style=\"color: #3366ff;\">points_for<\/span> - df. <span style=\"color: #3366ff;\">points_against<\/span>\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points_for points_against diff\n0 A 18 5 13\n1 B 22 7 15\n2 C 19 17 2\n3 D 14 22 -8\n4 E 14 12 2\n5 F 11 9 2\n6 G 20 9 11\n7:28 4 24\n\n<span style=\"color: #008080;\">#view data type of each column\n<\/span><span style=\"color: #008000;\">print<\/span> ( <span style=\"color: #3366ff;\">df.dtypes<\/span> )\n\nteam object\npoints_for int32\npoints_against int64\ndiff int64\ndtype:object<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Zauwa\u017c, \u017ce nie otrzymujemy b\u0142\u0119du, poniewa\u017c dwie kolumny u\u017cyte do odejmowania s\u0105 kolumnami liczbowymi.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki wyja\u015bniaj\u0105, jak naprawi\u0107 inne typowe b\u0142\u0119dy w Pythonie:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/b\u0142ad-klucza-pandy\/\" target=\"_blank\" rel=\"noopener\">Jak naprawi\u0107 b\u0142\u0105d KeyError w Pandach<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/valueerror-nie-moze-przekonwertowac-float-nan-na-liczbe-ca\u0142kowita\/\" target=\"_blank\" rel=\"noopener\">Jak naprawi\u0107: ValueError: Nie mo\u017cna przekonwertowa\u0107 float NaN na int<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/operandy-nie-mog\u0142y-byc-rozg\u0142aszane-wraz-z-formularzami\/\" target=\"_blank\" rel=\"noopener\">Jak naprawi\u0107: B\u0142\u0105d warto\u015bci: Nie mo\u017cna rozg\u0142asza\u0107 argument\u00f3w z kszta\u0142tami<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u0142\u0105d, kt\u00f3ry mo\u017cesz napotka\u0107 podczas korzystania z Pythona, to: TypeError : unsupported operand type(s) for -: 'str&#8217; and 'int&#8217; Ten b\u0142\u0105d wyst\u0119puje podczas pr\u00f3by odejmowania ze zmienn\u0105 \u0142a\u0144cuchow\u0105 i zmienn\u0105 numeryczn\u0105. Poni\u017cszy przyk\u0142ad pokazuje, jak w praktyce rozwi\u0105za\u0107 ten b\u0142\u0105d. Jak odtworzy\u0107 b\u0142\u0105d Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 DataFrame pand: import pandas as pd #createDataFrame [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2974","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak naprawi\u0107: TypeError: Nieobs\u0142ugiwane typy argument\u00f3w dla -: \u201estr\u201d i \u201eint\u201d \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak naprawi\u0107 nast\u0119puj\u0105cy b\u0142\u0105d w Pythonie: TypeError: Nieobs\u0142ugiwane typy operand\u00f3w dla -: \u201estr\u201d i \u201eint\u201d.\" 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