🐛 fix(seed): add --ignore-installed to pip invoke seeder#3064
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On macOS with the system Python from Xcode CommandLineTools, the venv's sys.path can leak system site-packages. When pip sees existing packages there (pip, setuptools, wheel), it tries to uninstall them before installing the new versions, failing with PermissionError since those paths are root-owned. Adding --ignore-installed tells pip to skip checking for existing installations entirely, which is safe since we're seeding a fresh venv. Fixes pypa#2121
This was referenced Mar 16, 2026
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On macOS with the system Python from Xcode CommandLineTools, the
PipInvokeseeder fails withPermissionError: [Errno 13] Permission denied: 'RECORD'when creating virtual environments. 🐛 This happens because the venv'ssys.pathleaks the systemsite-packages, causing pip to attempt uninstalling root-owned packages (pip, setuptools, wheel) before installing the seeded versions.The fix adds
--ignore-installedto the pip install command used during seeding. Since we're always installing into a freshly created virtual environment, there's no reason for pip to inspect or remove pre-existing packages visible through the inheritedsys.path. This flag is already commonly used in similar contexts (e.g.,pip install --ignore-installedinside Docker builds and CI environments) and carries no downside here.This affects macOS users on both x86 and ARM/M1 when using the system Python, and has been reported by multiple users including JetBrains IDE users who rely on the zipapp. Linux and user-installed Python interpreters are unaffected.
Fixes #2121