{"id":10119,"date":"2022-09-22T09:08:58","date_gmt":"2022-09-22T03:38:58","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/"},"modified":"2022-09-22T09:08:58","modified_gmt":"2022-09-22T03:38:58","slug":"solved-tutorialspoint-flask-sqlalchemy-not-working","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/","title":{"rendered":"[Solved] TutorialsPoint – Flask \u2013 SQLAlchemy not working"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

\n
\n
<\/div>\n
\n
\n

The tutorial has an indentation problem in the student class.
\nThe constructor code should be indented one level so it becomes a method of the student class.<\/p>\n

Corrected code: (note the indent of “def init<\/strong>(self, name, city, addr,pin):” in the code below)<\/p>\n

class students(db.Model):\n   id = db.Column('student_id', db.Integer, primary_key = True)\n   name = db.Column(db.String(100))\n   city = db.Column(db.String(50))\n   addr = db.Column(db.String(200)) \n   pin = db.Column(db.String(10))\n\n   def __init__(self, name, city, addr,pin):\n      self.name = name\n      self.city = city\n      self.addr = addr\n      self.pin = pin\n<\/code><\/pre>\n
The reason is, if that indent is not there, python will not see this function as a constructor of the student class. So the constructor with the matching number of arguments is not found, resulting in the error.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            7<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved TutorialsPoint – Flask \u2013 SQLAlchemy not working <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] The tutorial has an indentation problem in the student class. The constructor code should be indented one level so it becomes a method of the student class. Corrected code: (note the indent of “def init(self, name, city, addr,pin):” in the code below) class students(db.Model): id = db.Column(‘student_id’, db.Integer, primary_key = True) name = db.Column(db.String(100)) … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[1679,349,1976,707],"class_list":["post-10119","post","type-post","status-publish","format-standard","hentry","category-solved","tag-flask","tag-python","tag-sqlalchemy","tag-sqlite"],"yoast_head":"\n[Solved] TutorialsPoint - Flask \u2013 SQLAlchemy not working - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] TutorialsPoint - Flask \u2013 SQLAlchemy not working - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] The tutorial has an indentation problem in the student class. The constructor code should be indented one level so it becomes a method of the student class. Corrected code: (note the indent of “def init(self, name, city, addr,pin):” in the code below) class students(db.Model): id = db.Column('student_id', db.Integer, primary_key = True) name = db.Column(db.String(100)) ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-22T03:38:58+00:00\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] TutorialsPoint – Flask \u2013 SQLAlchemy not working\",\"datePublished\":\"2022-09-22T03:38:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/\"},\"wordCount\":98,\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"keywords\":[\"flask\",\"python\",\"sqlalchemy\",\"sqlite\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/\",\"url\":\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/\",\"name\":\"[Solved] TutorialsPoint - Flask \u2013 SQLAlchemy not working - JassWeb\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#website\"},\"datePublished\":\"2022-09-22T03:38:58+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/jassweb.com\/solved\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"[Solved] TutorialsPoint – Flask \u2013 SQLAlchemy not working\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/jassweb.com\/solved\/#website\",\"url\":\"https:\/\/jassweb.com\/solved\/\",\"name\":\"JassWeb\",\"description\":\"Build High-quality Websites\",\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/jassweb.com\/solved\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\",\"name\":\"Jass Web\",\"url\":\"https:\/\/jassweb.com\/solved\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png\",\"contentUrl\":\"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png\",\"width\":693,\"height\":132,\"caption\":\"Jass Web\"},\"image\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\",\"name\":\"Kirat\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750\",\"contentUrl\":\"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750\",\"caption\":\"Kirat\"},\"sameAs\":[\"http:\/\/jassweb.com\"],\"url\":\"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"[Solved] TutorialsPoint - Flask \u2013 SQLAlchemy not working - JassWeb","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/","og_locale":"en_US","og_type":"article","og_title":"[Solved] TutorialsPoint - Flask \u2013 SQLAlchemy not working - JassWeb","og_description":"[ad_1] The tutorial has an indentation problem in the student class. The constructor code should be indented one level so it becomes a method of the student class. Corrected code: (note the indent of “def init(self, name, city, addr,pin):” in the code below) class students(db.Model): id = db.Column('student_id', db.Integer, primary_key = True) name = db.Column(db.String(100)) ... Read more","og_url":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/","og_site_name":"JassWeb","article_published_time":"2022-09-22T03:38:58+00:00","author":"Kirat","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Kirat","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/#article","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/"},"author":{"name":"Kirat","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31"},"headline":"[Solved] TutorialsPoint – Flask \u2013 SQLAlchemy not working","datePublished":"2022-09-22T03:38:58+00:00","mainEntityOfPage":{"@id":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/"},"wordCount":98,"publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"keywords":["flask","python","sqlalchemy","sqlite"],"articleSection":["Solved"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/","url":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/","name":"[Solved] TutorialsPoint - Flask \u2013 SQLAlchemy not working - JassWeb","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/#website"},"datePublished":"2022-09-22T03:38:58+00:00","breadcrumb":{"@id":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/jassweb.com\/solved\/solved-tutorialspoint-flask-sqlalchemy-not-working\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jassweb.com\/solved\/"},{"@type":"ListItem","position":2,"name":"[Solved] TutorialsPoint – Flask \u2013 SQLAlchemy not working"}]},{"@type":"WebSite","@id":"https:\/\/jassweb.com\/solved\/#website","url":"https:\/\/jassweb.com\/solved\/","name":"JassWeb","description":"Build High-quality Websites","publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jassweb.com\/solved\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/jassweb.com\/solved\/#organization","name":"Jass Web","url":"https:\/\/jassweb.com\/solved\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/","url":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","contentUrl":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","width":693,"height":132,"caption":"Jass Web"},"image":{"@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31","name":"Kirat","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/image\/","url":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750","contentUrl":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750","caption":"Kirat"},"sameAs":["http:\/\/jassweb.com"],"url":"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/"}]}},"_links":{"self":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/10119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/comments?post=10119"}],"version-history":[{"count":0,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/10119\/revisions"}],"wp:attachment":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/media?parent=10119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/categories?post=10119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/tags?post=10119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}