[PEP 771] Finalize Implementation of Default Extra

[DEKHTIARJonathan]

What's the problem this feature will solve?

[PEP 771] Finalize Implementation of Default Extra

Describe the solution you'd like

[PEP 771] Finalize Implementation of Default Extra

Alternative Solutions

[PEP 771] Finalize Implementation of Default Extra

Additional context

[PEP 771] Finalize Implementation of Default Extra

Code of Conduct

• I agree to follow the PSF Code of Conduct.