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| author | jaseg <git@jaseg.de> | 2025-07-26 14:24:27 +0200 |
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| committer | jaseg <git@jaseg.de> | 2025-07-26 14:24:27 +0200 |
| commit | d91500da884b5dd240de0d35517c4ef4e87b5c2c (patch) | |
| tree | 6af998b2e1591c87087370e5c4ace701b2cf6160 /blog/jupyterlab-notebook-file-oneliner/index.html | |
| parent | 338de75fb45b861510e99a8271724fd00f2b023e (diff) | |
| parent | 3281a5044261cb2d8bcce263f959ab9b0fbc93fb (diff) | |
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diff --git a/blog/jupyterlab-notebook-file-oneliner/index.html b/blog/jupyterlab-notebook-file-oneliner/index.html new file mode 100644 index 0000000..9eb93a2 --- /dev/null +++ b/blog/jupyterlab-notebook-file-oneliner/index.html @@ -0,0 +1,85 @@ +<!DOCTYPE html> +<html><head> + <meta charset="utf-8"> + <title>Getting the .ipynb Notebook File Location From a Running Jupyter Lab Notebook | Home</title> + <meta name="description" content=""> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="mobile-web-app-capable" content="yes"> + <meta name="color-scheme" content="dark light"> + <link rel="stylesheet" href="/style.css"> + + <link rel="preload" href="/fonts/roboto_slab/RobotoSlab-VariableFont_wght.ttf" as="font" type="font/ttf" crossorigin /> + <link rel="preload" href="/fonts/nyght-serif-main/fonts/WEB/NyghtSerif-Regular.woff2" as="font" type="font/woff2" crossorigin /> + <link rel="preload" href="/fonts/nyght-serif-main/fonts/WEB/NyghtSerif-Bold.woff2" as="font" type="font/woff2" crossorigin /> + <link rel="preload" href="/fonts/nyght-serif-main/fonts/WEB/NyghtSerif-BoldItalic.woff2" as="font" type="font/woff2" crossorigin /> +</head> +<body><nav> + <div class="internal"> + + <a href="/" title="Home">Home</a> + <a href="/blog/" title="Blog">Blog</a> + <a href="/projects/" title="Projects">Projects</a> + <a href="/about/" title="About">About</a> + </div> + <div class="search"> + <div id="search"></div> + </div> + <div class="external"> + <a href="https://git.jaseg.de/" title="cgit">cgit</a> + <a href="https://github.com/jaseg" title="Github">Github</a> + <a href="https://gitlab.com/neinseg" title="Gitlab">Gitlab</a> + <a href="https://chaos.social/@jaseg" title="Mastodon">Mastodon</a> + </span> +</nav> + + <header> + <h1>Getting the .ipynb Notebook File Location From a Running Jupyter Lab Notebook</h1> +<ul class="breadcrumbs"> + <li><a href="/">jaseg.de</a></li> + <li><a href="/blog/">Blog</a></li><li><a href="/blog/jupyterlab-notebook-file-oneliner/">Getting the .ipynb Notebook File Location From a Running Jupyter Lab Notebook</a></li> +</ul> + <strong>2025-06-29</strong> + </header> + <main data-pagefind-body> + <div class="document"> + + +<p>If you need to get the path of the ipynb file in a running #Jupyter notebook, this one-liner will do the trick. It seems +chatgpt is confused, and a bunch of other approaches on the web look fragile and/or unnecessarily complex to me.</p> +<pre class="code python literal-block"> +<span class="lineno"></span><span class="line"><span class="kn">import</span><span class="w"> </span><span class="nn">sys</span><span class="w"></span></span> +<span class="lineno"></span><span class="line"><span class="w"></span><span class="n">Path</span><span class="p">(</span><span class="n">json</span><span class="o">.</span><span class="n">loads</span><span class="p">(</span><span class="n">Path</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span><span class="o">.</span><span class="n">read_bytes</span><span class="p">())[</span><span class="s1">'jupyter_session'</span><span class="p">])</span> +</span></pre> +<p>The way this works is that for each notebook, jupyter starts a python "kernel" process that actually runs the notebook's +code. That kernel gets a json file with info on the notebook's location on the disk passed through its command line. +Since we're running code in that exact python process, we can just grab that json file from sys.argv, and read it +ourselves.</p> +</div> + </main><footer> + Copyright © 2025 Jan Sebastian Götte + / <a href="/about/">About</a> + / <a href="/imprint/">Imprint</a> +</footer> +<script type="text/javascript" src="/pagefind/pagefind-ui.js" defer></script> + <script> + window.addEventListener('DOMContentLoaded', (event) => { + new PagefindUI({element: "#search", showSubResults: true}); + }); + </script> + <script type="speculationrules"> + { + "prerender": [ + { + "source": "document", + "where": { + "and": [ + {"href_matches": "/*"} + ] + }, + "eagerness": "moderate" + } + ] + } + </script> + </body> +</html> |