Remove namespace packaging hooks #11223
Merged
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Summary
This commit removes the pkgutil namespace hooks that are used for extending the
qiskit.*
andqiskit.providers.*
namespaces from external packages. These were previously used to enable the elements packaging model where different parts of qiskit lived in separate python packages under a shared namespace. This is no longer being used and leaving the namespace extendable by external packages carries a risk of issues or other accidental cross-interactions when an external package gets loaded as part of Qiskit.Details and comments