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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"exec_prefix not found when prefix is found at runtime when install tree is moved","articleBody":"Background: for years we've distributed a copy of python (starting with version 2.7 or before) with our app and have depended on python finding prefix \u0026 exec_prefix when they're different than the directories specified when configure is run. On macOS, we use a framework enabled build and install_name_tool to rewrite module loads paths so they are relative.\r\n\r\nWhen python 3.12b4 is built with macOS frameworks enabled and the python install tree is moved, exec_prefix is not set to the correct directory even though prefix is. The bug could also affect other builds and other platforms.\r\n\r\nTo reproduce on macOS --\r\n\r\n`cd cpython`\r\n`mkdir ../install`\r\n``./configure --with-pydebug --prefix=`pwd`/../install --enable-framework=`pwd`/../install/lib``\r\n`make install`\r\n`mv ../install ../install.moved`\r\n`DYLD_FRAMEWORK_PATH=`pwd`/../install.moved/lib ../install.moved/bin/python3`\r\n`\u003e\u003e import sys`\r\n`\u003e\u003e sys.prefix`\r\n`'/Users/jpe/install.moved/lib/Python.framework/Versions/3.13'`\r\n`\u003e\u003e\u003e sys.exec_prefix`\r\n`'/Users/jpe/cpython/../install/lib/Python.framework/Versions/3.13'`\r\n\r\nThe problem is in Modules/getpath.py -- it looks for the prefix based on the library variable but does not do this for exec_prefix. I plan to submit a pull request with a potential fix.\r\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-107661\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/jpe","@type":"Person","name":"jpe"},"datePublished":"2023-08-05T13:19:33.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/107658/cpython/issues/107658"}