Blog: Py Data

Skip to content

Posts

How I Built an Idempotent Real‑Time Trend Detector from GitHub’s Engineering RSS Feed

Ever watched a tech blog’s RSS feed and wondered why you keep seeing the same headlines over and over, while the truly fresh ideas slip through the…

Architecting Real-Time Enterprise Dashboards: Mastering Streamlit State Management and Async Ingestion for Dynamic APIs

Master Streamlit's advanced caching primitives and session-state lifecycle to build production-grade, responsive dashboards that process high-f…

Real-Time Streaming Forecasts for Nepal's Stock Market: MLOps and Generative AI at Scale

Yesterday I tried to run my batch‑oriented liquidity forecaster on a live NEPSE feed and watched the latency balloon as soon as the order book turn…

Building an AI Liquidity Forecaster for Nepal's Stock Market

Have you ever tried building a predictive model for a frontier market like the Nepal Stock Exchange (NEPSE) only to watch your historical technical…

Taming the Torrent: Idempotent Incremental Ingestion for Dynamic Feeds with PySpark

When I first tried to pull the GitHub Engineering blog RSS feed into our lake, the pipeline kept re‑writing the same 10 posts every night and occas…

How I Detected Keyword Rate Shifts in the Netflix Tech Blog with a Bayesian Hierarchical Model

Ever stared at a handful of RSS entries and wondered whether “microservice” is suddenly trending or just fluking in the Netflix Tech Blog? I faced …

<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/3805468264-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AKZvMzvPUROFHegQodEVyyExyIBW:1791930038283';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d9085610809481687705','//blogs.mausamadhikari.com.np/search?updated-max\x3d2026-10-12T21:44:00-07:00\x26max-results\x3d10','9085610809481687705');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '9085610809481687705', 'title': 'Py Data', 'url': 'http://blogs.mausamadhikari.com.np/search?updated-max\x3d2026-10-12T21:44:00-07:00\x26max-results\x3d10', 'canonicalUrl': 'http://blogs.mausamadhikari.com.np/search?updated-max\x3d2026-10-12T21:44:00-07:00\x26max-results\x3d10', 'homepageUrl': 'http://blogs.mausamadhikari.com.np/', 'searchUrl': 'http://blogs.mausamadhikari.com.np/search', 'canonicalHomepageUrl': 'http://blogs.mausamadhikari.com.np/', 'blogspotFaviconUrl': 'http://blogs.mausamadhikari.com.np/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': true, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': 'G-Y1PBH6L2JV', 'analytics4': true, 'encoding': 'UTF-8', 'locale': 'en-GB', 'localeUnderscoreDelimited': 'en_gb', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Py Data - Atom\x22 href\x3d\x22http://blogs.mausamadhikari.com.np/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22Py Data - RSS\x22 href\x3d\x22http://blogs.mausamadhikari.com.np/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Py Data - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/9085610809481687705/posts/default\x22 /\x3e\n', 'meTag': '', 'adsenseClientId': 'ca-pub-2325414716748127', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': true, 'adsenseAutoAds': true, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/0de680cd2a80ce27', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': 'Get link', 'key': 'link', 'shareMessage': 'Get link', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Share to Facebook', 'target': 'facebook'}, {'name': 'BlogThis!', 'key': 'blogThis', 'shareMessage': 'BlogThis!', 'target': 'blog'}, {'name': 'X', 'key': 'twitter', 'shareMessage': 'Share to X', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Share to Pinterest', 'target': 'pinterest'}, {'name': 'Email', 'key': 'email', 'shareMessage': 'Email', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27en_GB\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': false, 'jumpLinkMessage': 'Read more', 'pageType': 'index', 'pageName': '', 'pageTitle': 'Py Data', 'metaDescription': 'Data engineering is the art of extracting knowledge from data sources, storing and organizing it, and finally making it available to the right users.'}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': 'Edit', 'linkCopiedToClipboard': 'Link copied to clipboard', 'ok': 'Ok', 'postLink': 'Post link'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': 'Custom', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': 'Py Data', 'description': 'Data engineering is the art of extracting knowledge from data sources, storing and organizing it, and finally making it available to the right users.', 'url': 'http://blogs.mausamadhikari.com.np/search?updated-max\x3d2026-10-12T21:44:00-07:00\x26max-results\x3d10', 'type': 'feed', 'isSingleItem': false, 'isMultipleItems': true, 'isError': false, 'isPage': false, 'isPost': false, 'isHomepage': false, 'isArchive': false, 'isSearch': true, 'isLabelSearch': false, 'search': {}}}, {'name': 'widgets', 'data': [{'title': 'Py Data (Header)', 'type': 'Header', 'sectionId': 'sec_Header_Title', 'id': 'Header01'}, {'title': 'Try \x27Data\x27', 'type': 'BlogSearch', 'sectionId': 'sec_Header_Search', 'id': 'BlogSearch01'}, {'title': 'Header Icon', 'type': 'TextList', 'sectionId': 'sec_Header_Icon', 'id': 'TextList01'}, {'title': 'Contributors', 'type': 'Profile', 'sectionId': 'sec_Header_Icon', 'id': 'Profile01'}, {'title': 'Bookmark Posts', 'type': 'LinkList', 'sectionId': 'sec_Header_Icon', 'id': 'LinkList02'}, {'title': 'Translate', 'type': 'LinkList', 'sectionId': 'sec_Header_Icon', 'id': 'LinkList03'}, {'title': 'Navigation Menu', 'type': 'HTML', 'sectionId': 'sec_Nav_Widgets_1', 'id': 'HTML01'}, {'title': 'Additional Links', 'type': 'PageList', 'sectionId': 'sec_Nav_Widgets_2', 'id': 'PageList02'}, {'title': 'Social Links', 'type': 'LinkList', 'sectionId': 'sec_Nav_Widgets_2', 'id': 'LinkList04'}, {'title': 'Tabbed Menu', 'type': 'LinkList', 'sectionId': 'sec_Notif_Widgets', 'id': 'LinkList05'}, {'title': 'Pinned Post', 'type': 'FeaturedPost', 'sectionId': 'sec_Top_Widgets', 'id': 'FeaturedPost01', 'postId': '4600207125055884056'}, {'title': 'Blog Posts', 'type': 'Blog', 'sectionId': 'sec_Main_Widgets', 'id': 'Blog01', 'posts': [{'id': '6035596081265226117', 'title': 'How I Built an Idempotent Real\u2011Time Trend Detector from GitHub\u2019s Engineering RSS Feed', 'showInlineAds': false}, {'id': '6327541844831492482', 'title': 'Architecting Real-Time Enterprise Dashboards: Mastering Streamlit State Management and Async Ingestion for Dynamic APIs', 'showInlineAds': false}, {'id': '8294786266819448892', 'title': 'Real-Time Streaming Forecasts for Nepal\x27s Stock Market: MLOps and Generative AI at Scale', 'showInlineAds': false}, {'id': '8005447939060858643', 'title': 'Building an AI Liquidity Forecaster for Nepal\x27s Stock Market', 'showInlineAds': false}, {'id': '3226124104438180716', 'title': 'Taming the Torrent: Idempotent Incremental Ingestion for Dynamic Feeds with PySpark', 'showInlineAds': false}, {'id': '661049121254478437', 'title': 'How I Detected Keyword Rate Shifts in the Netflix Tech Blog with a Bayesian Hierarchical Model', 'showInlineAds': false}], 'footerBylines': [{'regionName': 'footer1', 'items': [{'name': 'author', 'label': 'Published by'}, {'name': 'timestamp', 'label': 'On'}, {'name': 'comments', 'label': 'Comment'}, {'name': 'icons', 'label': ''}, {'name': 'share', 'label': ''}]}, {'regionName': 'footer2', 'items': [{'name': 'labels', 'label': 'in'}]}, {'regionName': 'footer3', 'items': [{'name': 'location', 'label': 'Location:'}]}], 'allBylineItems': [{'name': 'author', 'label': 'Published by'}, {'name': 'timestamp', 'label': 'On'}, {'name': 'comments', 'label': 'Comment'}, {'name': 'icons', 'label': ''}, {'name': 'share', 'label': ''}, {'name': 'labels', 'label': 'in'}, {'name': 'location', 'label': 'Location:'}]}, {'title': 'Table of contents', 'type': 'HTML', 'sectionId': 'sec_Main_Widgets', 'id': 'HTML11'}, {'title': 'Popular Posts', 'type': 'PopularPosts', 'sectionId': 'sec_Side_Widgets', 'id': 'PopularPosts01', 'posts': [{'title': 'Functions in Python', 'id': 1011965119791846528}, {'title': 'Architecting Hybrid Forecasts: Combining Prophet and SARIMAX for Dynamic Event Frequency Prediction', 'id': 7301926417673006087}, {'title': 'Architecting Adaptive Labeling Pipelines: Optimizing Human-in-the-Loop with Uncertainty Sampling', 'id': 5709349859253191401}, {'title': 'Architecting Adaptive Decision-Making Agents: Q-Learning on Dynamic Text Streams', 'id': 1657980785508116938}, {'title': 'From Unstructured Noise to Actionable Signals: Architecting Multi-Stage LLM Pipelines for Robust Event Extraction', 'id': 7347368183500097907}]}, {'title': 'Google Ads', 'type': 'HTML', 'sectionId': 'sec_Side_Sticky', 'id': 'HTML1'}, {'title': 'Take me back', 'type': 'HTML', 'sectionId': 'sec_Error_404', 'id': 'HTML404'}, {'title': 'Py Data', 'type': 'Image', 'sectionId': 'sec_Footer_Widgets_1', 'id': 'Image21'}, {'title': 'Social Media Links', 'type': 'LinkList', 'sectionId': 'sec_Footer_Widgets_1', 'id': 'LinkList21'}, {'title': 'Credit', 'type': 'HTML', 'sectionId': 'sec_Footer_Credit', 'id': 'HTML21'}, {'title': 'Mobile Menu', 'type': 'TextList', 'sectionId': 'sec_Mobile_Menu', 'id': 'TextList99'}, {'title': 'Labels', 'type': 'Label', 'sectionId': 'sec_Theme_Hidden', 'id': 'Label41'}, {'title': '\u09af\u09cb\u0997\u09be\u09af\u09cb\u0997 \u09ab\u09b0\u09cd\u09ae', 'type': 'ContactForm', 'sectionId': 'sec_Theme_Hidden', 'id': 'ContactForm41'}, {'title': 'Pageviews last month', 'type': 'Stats', 'sectionId': 'sec_Theme_Hidden', 'id': 'Stats41'}, {'title': 'Progressive Web App', 'type': 'LinkList', 'sectionId': 'sec_Addon_Widgets', 'id': 'LinkList62'}, {'title': 'Cookie Consent [NoTitle]', 'type': 'LinkList', 'sectionId': 'sec_Addon_Widgets', 'id': 'LinkList63'}, {'title': 'Image Uploader', 'type': 'Image', 'sectionId': 'sec_Addon_Widgets', 'id': 'Image61'}]}]);
_WidgetManager._RegisterWidget('_HeaderView', new _WidgetInfo('Header01', 'sec_Header_Title', document.getElementById('Header01'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogSearchView', new _WidgetInfo('BlogSearch01', 'sec_Header_Search', document.getElementById('BlogSearch01'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_TextListView', new _WidgetInfo('TextList01', 'sec_Header_Icon', document.getElementById('TextList01'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_ProfileView', new _WidgetInfo('Profile01', 'sec_Header_Icon', document.getElementById('Profile01'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList02', 'sec_Header_Icon', document.getElementById('LinkList02'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList03', 'sec_Header_Icon', document.getElementById('LinkList03'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML01', 'sec_Nav_Widgets_1', document.getElementById('HTML01'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PageListView', new _WidgetInfo('PageList02', 'sec_Nav_Widgets_2', document.getElementById('PageList02'), {'title': 'Additional Links', 'links': [{'isCurrentPage': false, 'href': '/p/sitemap.html', 'title': 'Sitemap'}, {'isCurrentPage': false, 'href': '#', 'title': 'Disclaimer'}, {'isCurrentPage': false, 'href': '#', 'title': 'Privacy'}], 'mobile': false, 'showPlaceholder': true, 'hasCurrentPage': false}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList04', 'sec_Nav_Widgets_2', document.getElementById('LinkList04'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList05', 'sec_Notif_Widgets', document.getElementById('LinkList05'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_FeaturedPostView', new _WidgetInfo('FeaturedPost01', 'sec_Top_Widgets', document.getElementById('FeaturedPost01'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog01', 'sec_Main_Widgets', document.getElementById('Blog01'), {'cmtInteractionsEnabled': false, 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/3058419044-lbx__en_gb.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/828616780-lightbox_bundle.css'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML11', 'sec_Main_Widgets', document.getElementById('HTML11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PopularPostsView', new _WidgetInfo('PopularPosts01', 'sec_Side_Widgets', document.getElementById('PopularPosts01'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML1', 'sec_Side_Sticky', document.getElementById('HTML1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML404', 'sec_Error_404', document.getElementById('HTML404'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image21', 'sec_Footer_Widgets_1', document.getElementById('Image21'), {'resize': true}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList21', 'sec_Footer_Widgets_1', document.getElementById('LinkList21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML21', 'sec_Footer_Credit', document.getElementById('HTML21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_TextListView', new _WidgetInfo('TextList99', 'sec_Mobile_Menu', document.getElementById('TextList99'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label41', 'sec_Theme_Hidden', document.getElementById('Label41'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_ContactFormView', new _WidgetInfo('ContactForm41', 'sec_Theme_Hidden', document.getElementById('ContactForm41'), {'contactFormMessageSendingMsg': 'Sending...', 'contactFormMessageSentMsg': 'Your message has been sent.', 'contactFormMessageNotSentMsg': 'Message could not be sent. Please try again later.', 'contactFormInvalidEmailMsg': 'A valid email address is required.', 'contactFormEmptyMessageMsg': 'Message field cannot be empty.', 'title': '\u09af\u09cb\u0997\u09be\u09af\u09cb\u0997 \u09ab\u09b0\u09cd\u09ae', 'blogId': '9085610809481687705', 'contactFormNameMsg': 'Name', 'contactFormEmailMsg': 'Email', 'contactFormMessageMsg': 'Message', 'contactFormSendMsg': 'Send', 'contactFormToken': 'AKZvMzslkl21F3lhRVt2Oc5yOBWL:1791930038375', 'submitUrl': 'https://www.blogger.com/contact-form'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_StatsView', new _WidgetInfo('Stats41', 'sec_Theme_Hidden', document.getElementById('Stats41'), {'title': 'Pageviews last month', 'showGraphicalCounter': false, 'showAnimatedCounter': false, 'showSparkline': true, 'statsUrl': '//blogs.mausamadhikari.com.np/b/stats?style\x3dBLACK_TRANSPARENT\x26timeRange\x3dLAST_WEEK\x26token\x3dANakCksiCuLQ9Jc3WLMaNZj_6WX7gqVPeWNBPpmHuE_l1trwHmyeUNAzBIrrQ2lNs7Zl_xUOnhB27f8N3SR1JPE'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList62', 'sec_Addon_Widgets', document.getElementById('LinkList62'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList63', 'sec_Addon_Widgets', document.getElementById('LinkList63'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image61', 'sec_Addon_Widgets', document.getElementById('Image61'), {'resize': false}, 'displayModeFull'));
</script>
</body>