check: Add function for parsing import names for local packages #139
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Nour-Mws
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Feb 13, 2023
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Wow this was easier than I expected. importlib really does miracles for us!
I think the failing CI is closely related to the issue I was having in #133.
I am only commenting here as I am not sure I understand the motivation behind the choices to let the mapping function fall back to identity mapping.
vreuter
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mknorps
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This adds find_import_names_from_package_name() which will use importlib.metadata to look up a package name (e.g. a dependency name) in the current Python environment, and attempt to find the corresponding import names that this package provides. If the package does not exist in the local environment, or if importlib.metadata is not able to find any provided import names, we return `None`, and expect the caller to fall back to some other mechanism to map the package name into import name(s).
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jherland
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Agreed in today's meeting that this PR is good to go.
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This adds find_import_names_from_dep() which will look up a dependency
name in the current Python environment, parse its top_level.txt file (if
it exists), and return the resulting import names made available by this
package.
If the package does not exist in the local environment, or if the
top_level.txt file does not exist for this package, we fall back to the
identity mapping, that is, returning the dependency name itself as an
import name.