importlib.metadata: Use `str.translate` to improve performance of `importlib.metadata.Prepared.normalized`

[hugovk]

Feature or enhancement

Proposal:

We can apply @henryiii's improvement to packaging in pypa/packaging#1030 (see also https://iscinumpy.dev/post/packaging-faster/) to improve the performance of canonicalize_name and make it ~3.7 times faster.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-143658: importlib.metadata: Use str.translate to improve performance of importlib.metadata.Prepared.normalized #143660
• gh-143658: Use str.lower and replace to further improve performance of importlib.metadata.Prepared.normalized #144083

[jaraco]

We can apply @henryiii's improvement to packaging in pypa/packaging#1030 (see also https://iscinumpy.dev/post/packaging-faster/) to improve the performance of canonicalize_name and make it ~3.7 times faster.

Let it be stated that the referenced blog provides the rationale why this change is valuable.