--- title: Fix PyQt6 widgets Appearing as Separate Windows | daily.dev description: When dynamically adding widgets in PyQt6, they can appear as separate floating windows instead of inside your application. This is caused by Qt's widget... canonical: https://daily.dev/posts/fix-pyqt6-widgets-appearing-as-separate-windows-4roee0ky1 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Fix PyQt6 widgets Appearing as Separate Windows | daily.dev og:description: When dynamically adding widgets in PyQt6, they can appear as separate floating windows instead of inside your application. This is caused by Qt's widget... og:url: https://daily.dev/posts/fix-pyqt6-widgets-appearing-as-separate-windows-4roee0ky1 og:image: https://api.daily.dev/og/posts/4roEE0Ky1.png og:image:alt: Fix PyQt6 widgets Appearing as Separate Windows og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Fix PyQt6 widgets Appearing as Separate Windows **[Planet Python](https://daily.dev/sources/planetpython)** · 5 min read · 0 upvotes · 0 comments ## Summary When dynamically adding widgets in PyQt6, they can appear as separate floating windows instead of inside your application. This is caused by Qt's widget parenting system: any widget without a parent is treated as a top-level window. Three common causes are covered — creating widgets without a parent, accidentally reassigning a widget attribute (causing orphaned children), and explicitly setting a parent to None. A complete working example demonstrates how to correctly build a QTabWidget with a dynamic '+' tab, ensuring every widget is created with an explicit parent and signals are blocked when programmatically switching tabs. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to Add Custom Python Widgets to Qt Designer Using Widget Promotion](https://daily.dev/posts/how-to-add-custom-python-widgets-to-qt-designer-using-widget-promotion-ocvoho5bn) · Planet Python · 5 upvotes · 0 comments - [How to Dynamically Add Rows of Widgets in PyQt6 with QGridLayout](https://daily.dev/posts/how-to-dynamically-add-rows-of-widgets-in-pyqt6-with-qgridlayout-j2fgwv51s) · Planet Python · 1 upvotes · 0 comments - [Qt Designer and Python: Build Your GUI Applications Faster Quiz – Real Python](https://daily.dev/posts/qt-designer-and-python-build-your-gui-applications-faster-quiz-real-python-cxq2kgbpx) · Real Python · 1 upvotes · 0 comments - [Using the WebView module with C\+\+ and Qt Widgets](https://daily.dev/posts/using-the-webview-module-with-c-and-qt-widgets-y0xlyhiod) · Qt · 0 upvotes · 0 comments - [Wayland Wars, a Custom File Picker, and Non-Blocking Threads: Building a Responsive Qt App](https://daily.dev/posts/wayland-wars-a-custom-file-picker-and-non-blocking-threads-building-a-responsive-qt-app-pcji3yhzg) · Medium · 0 upvotes · 0 comments --- Tags: [#python](https://daily.dev/tags/python), [#qt](https://daily.dev/tags/qt) [View this post on daily.dev](https://daily.dev/posts/fix-pyqt6-widgets-appearing-as-separate-windows-4roee0ky1) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Fix PyQt6 widgets Appearing as Separate Windows","url":"https://daily.dev/posts/fix-pyqt6-widgets-appearing-as-separate-windows-4roee0ky1","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/fix-pyqt6-widgets-appearing-as-separate-windows-4roee0ky1"},"datePublished":"2026-07-08T07:52:41.258Z","dateModified":"2026-07-08T07:53:05.253Z","description":"When dynamically adding widgets in PyQt6, they can appear as separate floating windows instead of inside your application. 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