Those changes are really good ideas. I'll do that.
Btw, do you have any idea why my last changes don't pass the test in time ?

I have no idea yet. But becasue it failed again exceeding the time limit, it seems this changes made something.

Btw, do you have any idea why my last changes don't pass the test in time ?

Try running the following command:

cargo run --release --features ssl,jit -- -m test -v

It was hanging in the snippets. To diagnose,

1. Build RustPython in release mode (with the features normally used for testing): cargo build --release --features ssl,jit
2. Navigate to the extra_tests directory and install pytest into a virtual environment. (e.g., cd extra_tests && pipenv install --python 3.9)
3. Run pytest on the extra_tests directory. (e.g., pipenv run pytest -v)

how far are we from completion here @TeamTamoad ? :)

Sorry for an late update. I'm super busy with life and college right now.
The hanging problem is cause by this snippet in file extra_tests/snippets/stdlib_collections.py

# Test that calling an evil __repr__ can't hang deque
class BadRepr:
    def __repr__(self):
        self.d.pop()
        return ''

b = BadRepr()
d = deque([1, b, 2])
b.d = d
repr(d)

It should be fixed now