How to get requirements with extras?

[MrMarvel]

from pkg_resources import working_set, get_distribution, VersionConflict, DistributionNotFound, DistInfoDistribution

for dist in working_set:
    dist: DistInfoDistribution
    dist.requires()

I can get requirements with method requires.
But I want to get all requirements with extras.
I can get extras names as str with property extras but not their requirements
EDIT: I need to get information from extra package requirements.

for dist in working_set:
    dist: DistInfoDistribution
    extras: list[str] = dist.extras

[abravalheri]

If you use packaging.requirements.Requirement to parse each item dist.requires you should be able to access req.extras (from there you can use things like filter, itertools.groupby or similar...).

Also please note that pkg_resources is deprecated, users are advised to migrate to importlib.metadata/importlib_metadata.

[MrMarvel]

I want to find requirements without any additionals packages installed (minimal python (pip setuptools))
packaging
from packaging.requirements import Requirement requires additional package

[MrMarvel]

Also I don't understand why does packaging.requirements.Requirement help.
packaging only help to to format string requirements to class object with api access with no parsing requirements so there is no new information I can get from it. req.extras just returns str as I put in Requirement declaration.

Still idk how to get extra requirements

[MrMarvel]

I found out something interesting.
Strange extras list generator

[MrMarvel]

Whoila!
working_set.by_key['jsonschema'].requires(('format',)) returns [Requirement.parse('attrs>=22.2.0'), Requirement.parse('jsonschema-specifications>=2023.03.6'), Requirement.parse('referencing>=0.28.4'), Requirement.parse('rpds-py>=0.7.1'), Requirement.parse('fqdn; extra == "format"'), Requirement.parse('idna; extra == "format"'), Requirement.parse('isoduration; extra == "format"'), Requirement.parse('jsonpointer>1.13; extra == "format"'), Requirement.parse('rfc3339-validator; extra == "format"'), Requirement.parse('rfc3987; extra == "format"'), Requirement.parse('uri-template; extra == "format"'), Requirement.parse('webcolors>=1.11; extra == "format"')]