ModuleNotFoundError was introduced in Python 3. It is raised when the
module does not exist. On the other hand, ImportError is raised during
any import failure. For example, a syntax error or other runtime error.

Using ModuleNotFoundError means that errors unrelated to a missing
package will be propagated to the user. PyJWT doesn't know how to handle
these.

This also allows more functions to always be available for import

Follows upstream cryptography commit:
https://github.com/pyca/cryptography/commit/5528a3182fdd6ed1c44c126d451a87bcf39e79de

Since Python 3.2, this bytes to an int is a native feature.

The first line of base64url_decode() is:

    if isinstance(input, str):
        input = input.encode("ascii")

It therefore accepts either str or bytes. Don't bother coercing to bytes
at the call site.

pyugrade is a command line tool to automatically update Python syntax to
modern usage and patterns. For additional details, see:

https://github.com/asottile/pyupgrade

Changes made by the tool:

- Use short Python3 super() syntax.
- Use f-strings when they are simple and more readable.
- Drop Python 2 u prefix from strings.
- Drop "r" argument from open(). It is the default and so specifying it is
  unnecessary.

With isort 5, asottile/seed-isort-config is deprecated and unnecessary.

The official isort main repo now has a pre-commit hook file.

isort is now better at recognizing first party and third party packages.

isort can now handle imports inside blocks, files have been updated.

isort now supports "profiles" for simpler configuration.

- Cryptography now has default_backend by default

* ECAlgorithm.to_jwk

* Fix failing linting

Co-authored-by: Evert Lammerts <evert@lucipher.net>

* Drop deprecation warnings

* Add missing keys

* Remove commented exceptions

* Undo lambda change

* Remove unused keys

Now successfully passes when running `tox -e lint`.