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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Race condition during installation in parallel builds","articleBody":"# Bug report\r\n\r\nWhen running `make -j install`, it is possible for the `python3` symlink to be installed before all standard library modules are installed. If an external program tries to run Python at this moment it can lead to an execution error.\r\n\r\nWe are getting sporadic build errors at OpenWrt (https://github.com/openwrt/packages/issues/19241) and believe this to be the cause, that during the build for \"host\" Python (Python that runs on the buildbot), another package being built tries to run a script using this Python because the `python3` symlink is in place.\r\n\r\n# Your environment\r\n\r\n- CPython versions tested on: 3.10\r\n- Operating system and architecture: Linux, not sure exactly which distribution\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-104693\n* gh-105428\n* gh-105429\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/jefferyto","@type":"Person","name":"jefferyto"},"datePublished":"2023-05-20T15:11:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/104692/cpython/issues/104692"}