https://dailypypy.org/tags/uvx/ Recent content in Uvx on 每日拍拍 Hugo -- gohugo.io zh-tw © 2026 每日拍拍 Wed, 28 Oct 2026 10:26:00 +0800 155076163427069952 154825760438254592 https://dailypypy.org/learn/python-uv-tool-lifecycle/ Wed, 28 Oct 2026 10:26:00 +0800 https://dailypypy.org/learn/python-uv-tool-lifecycle/ <!--- 1440x768 prompt: masterpiece, best quality, highres, clean anime illustration, japanese anime style, soft shading, flat color design, 1girl, black hair, green eyes, white off-shoulder shirt, black short skirt, eye-level wide cowboy shot, standing with hands clasped behind her back and shoulders relaxed, playful head tilt and bright closed-mouth grin, looking at viewer, pastel apricot background, neat composition, detailed eyes, cute and smart vibe, minimal background, polished illustration, no text negative prompt: worst quality, bad eye, bad hand, extra limbs, manga, multiple views, monochrome, text, signature dedup note: Specific lifecycle follow-up to ../python-uv/, which only briefly introduces uvx. This article owns disposable versus persistent CLI environments, installed-tool reuse, explicit package selection, PATH provenance/shadowing, isolated tool/bin/cache testing and scoped upgrade/rollback/uninstall. ../python-uv-python-management/ owns interpreter install/find/pin; here interpreter checks only prove tool/project separation. No workspace, scripts, dependency-group, resolver or offline-cache walkthrough is repeated. ---> <h2 class="relative group">一. 前言：裝好了，為什麼還是舊版本？ <div id="一-前言裝好了為什麼還是舊版本" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700" style="text-decoration-line: none !important;" href="#%e4%b8%80-%e5%89%8d%e8%a8%80%e8%a3%9d%e5%a5%bd%e4%ba%86%e7%82%ba%e4%bb%80%e9%ba%bc%e9%82%84%e6%98%af%e8%88%8a%e7%89%88%e6%9c%ac" aria-label="定位點">#</a> </span> </h2> <p>拍拍君曾經看過一種很迷惑的除錯現場： 工具管理器說「安裝成功」，終端機卻繼續印舊版本。 有人於是再裝一次、再加一次 <code>--force</code>，最後連自己用了哪一份都說不清。</p> <p>問題往往不在安裝，而在兩條不同的選擇路徑： <strong>uv 決定工具環境，shell 決定裸指令會跑哪個檔案。</strong> 它們不是同一個問題，也不一定得到同一個答案。</p> <p>這篇不重講 <a href="../python-uv/">uv 入門</a> 的專案建立流程。 我們只追蹤一個 CLI：從臨時執行、持久安裝，到升級、回退與移除。 例子使用 Ruff，但不討論 lint 規則；想學規則請看 <a href="../python-ruff/">Ruff 教學</a>。</p>