Package multiple python modules

[ghost]

Motivation for this change

I want to package these modules so that I can use a nix-shell for development.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Assured whether relevant documentation is up to date
• Fits CONTRIBUTING.md.

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[ghost]

@dotlambda You said I should ping you when I open the new PR with multiple packages.

[ghost]

I also submitted a PR to each of the projects to include the tests in their pypi tarballs. I will update the packages when / if they get merged.

[ghost]

@dotlambda ping for done.

Not ready, I want to add my pgp key / sign my commits.

Ready.

[dotlambda]

@GrahamcOfBorg build pythonPackages.djangorestframework-jwt python3Packages.djangorestframework-jwt pythonPackages.django-rest-auth python3Packages.django-rest-auth pythonPackages.django-cors-headers python3Packages.django-cors-headers pythonPackages.braintree python3Packages.braintree

[ghost]

@dotlambda thanks!