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Improve import time of various stdlib modules #118761
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Sure! |
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I've opened a PR over at the
@layday were you planning on tackling these?
This seems to be solved on main, |
importlib.metadataCo-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
This has been merged and released in version 8.4 of
I've submitted python/importlib_metadata#502 that defers zip import, and python/importlib_metadata#503 which defers |
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(removing the 3.14 label since features always target the main branch) |
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Feature or enhancement
Proposal:
Following on from #109653, further improvements can be made to import times.
Links to previous discussion of this feature:
https://discuss.python.org/t/deferred-computation-evalution-for-toplevels-imports-and-dataclasses/34173
For example:
importlib.metadatais often used for tasks that need to happen at import, e.g. to enumerate/load entry point plug-ins, so it might be worth seeing if we can cut down its own import time a bit more.importlib.metadataimportszipfileat the top for a function that won't be called in the vast majority of cases. It also importsimportlib.abc, which in turn importsimportlib.resources, to subclass an ABC with a single, non-abstract method - I assume redefining the method inimportlib.metadatawould be harmless. Some other less frequently-used imports which are only accessed once or twice, such asjson, could also be tucked away in their calling functions.Linked PRs
pprint#122725socketby writingsocket.errorTabas a constant and lazy import modules #121424mimetypes#126979The text was updated successfully, but these errors were encountered: