Fix a bug in pwscf.py. The proc_val function modifies string values.

[pablogalaviz]

Summary

The proc_val function modifies the value of string variables (changes 'd' for 'e'). For example, smearing = 'cold' becomes smearing = 'cole'. It is solved by using a local variable.

Major changes:

Added a local variable

    val_replace = val.replace("d", "e")
    return smart_int_or_float(val_replace)

Todos

Checklist

• Google format doc strings added. Check with ruff.
• Type annotations included. Check with mypy.
• Tests added for new features/fixes.
• If applicable, new classes/functions/modules have duecredit @due.dcite decorators to reference relevant papers by DOI (example)

Tip: Install pre-commit hooks to auto-check types and linting before every commit:

pip install -U pre-commit
pre-commit install

[janosh]

Thanks @pablogalaviz! We need a new test for this that fails without this fix.

[janosh]

Nice test, thanks @pablogalaviz! 👍