--- title: Your AI Data Science Is Lying to You | daily.dev description: A practical walkthrough of using AI (specifically PyCharm's integrated Codex agent) for real data science work, emphasizing the importance of validating... canonical: https://daily.dev/posts/your-ai-data-science-is-lying-to-you-aeq7cbqxo twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Your AI Data Science Is Lying to You | daily.dev og:description: A practical walkthrough of using AI (specifically PyCharm's integrated Codex agent) for real data science work, emphasizing the importance of validating... og:url: https://daily.dev/posts/your-ai-data-science-is-lying-to-you-aeq7cbqxo og:image: https://api.daily.dev/og/posts/aEQ7Cbqxo.png og:image:alt: Your AI Data Science Is Lying to You 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. # Your AI Data Science Is Lying to You **[Tech With Tim](https://daily.dev/sources/TechWithTim)** · 1 min read · 0 upvotes · 0 comments ## Summary A practical walkthrough of using AI (specifically PyCharm's integrated Codex agent) for real data science work, emphasizing the importance of validating AI-generated transformations rather than blindly trusting them. The key insight is that in Jupyter notebooks, broken code doesn't crash — it silently produces wrong results. PyCharm's built-in data frame viewer and variable inspector let you quickly verify data types, distributions, and null counts in one glance, catching issues like a numeric column being returned as a string. The workflow: let AI accelerate transformations, then validate before trusting. ## 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 Evaluate AI Code Quality: A Practical Guide for Engineers](https://daily.dev/posts/how-to-evaluate-ai-code-quality-a-practical-guide-for-engineers-rbtcmfynl) · freeCodeCamp · 0 upvotes · 0 comments - [Code that runs is not code that's correct: 4 ways to trust an AI-written data pipeline](https://daily.dev/posts/code-that-runs-is-not-code-that-s-correct-4-ways-to-trust-an-ai-written-data-pipeline-6o63ugcr5) · MotherDuck · 1 upvotes · 0 comments - [Beyond Code Generation: AI for the Full Data Science Workflow](https://daily.dev/posts/beyond-code-generation-ai-for-the-full-data-science-workflow-hqrcj0p03) · Towards Data Science · 1 upvotes · 0 comments --- Tags: [#python](https://daily.dev/tags/python), [#data-science](https://daily.dev/tags/data-science), [#devtools](https://daily.dev/tags/devtools), [#ai-assisted-development](https://daily.dev/tags/ai-assisted-development), [#jupyter](https://daily.dev/tags/jupyter) [View this post on daily.dev](https://daily.dev/posts/your-ai-data-science-is-lying-to-you-aeq7cbqxo) ```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":"Your AI Data Science Is Lying to You","url":"https://daily.dev/posts/your-ai-data-science-is-lying-to-you-aeq7cbqxo","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/your-ai-data-science-is-lying-to-you-aeq7cbqxo"},"datePublished":"2026-07-21T12:09:17.174Z","dateModified":"2026-07-21T12:10:23.164Z","description":"A practical walkthrough of using AI (specifically PyCharm's integrated Codex agent) for real data science work, emphasizing the importance of validating...","image":"https://i.ytimg.com/vi/8AGyh2Tc1hQ/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/8AGyh2Tc1hQ/sddefault.jpg","isAccessibleForFree":true,"articleSection":"Tech With Tim","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Tech With Tim","logo":"https://media.daily.dev/image/upload/s--6vVIDfU0--/f_auto/v1711726146/logos/TechWithTim","url":"https://daily.dev/sources/TechWithTim"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/your-ai-data-science-is-lying-to-you-aeq7cbqxo","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"python,data-science,devtools,ai-assisted-development,jupyter","timeRequired":"PT1M","video":{"@type":"VideoObject","name":"Your AI Data Science Is Lying to You","description":"A practical walkthrough of using AI (specifically PyCharm's integrated Codex agent) for real data science work, emphasizing the importance of validating...","thumbnailUrl":"https://i.ytimg.com/vi/8AGyh2Tc1hQ/sddefault.jpg","uploadDate":"2026-07-21T12:09:17.174Z","duration":"PT1M","url":"https://api.daily.dev/r/aEQ7Cbqxo","embedUrl":"https://www.youtube.com/embed/8AGyh2Tc1hQ"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Tech With Tim","item":"https://daily.dev/sources/TechWithTim"},{"@type":"ListItem","position":3,"name":"Your AI Data Science Is Lying to You"}]} ```