`six` dependency is listed but unused

pyproject.toml lists six>=1.10.0,<2.0 as a runtime dependency, but six is not imported anywhere in the codebase. Since the project requires Python ≥3.10, six (a Python 2/3 compatibility library) is unnecessary.

Problem

In pyproject.toml:

dependencies = [
    "python-baseconv>=1.2.0,<2.0",
    "six>=1.10.0,<2.0",        # ← Not used anywhere
    "morphys>=1.0,<2.0",
]

Searching the codebase for six imports:

$ grep -r "import six\|from six" multibase/
# No results

The six library was needed for Python 2/3 compatibility (e.g., six.ensure_str(), six.integer_types). Since pyproject.toml requires python >= 3.10, all six functionality is available natively.

Proposed Solution

Remove six from dependencies in pyproject.toml:

dependencies = [
    "python-baseconv>=1.2.0,<2.0",
    "morphys>=1.0,<2.0",
]

Verify no test or doc references remain:

grep -r "six" multibase/ tests/ docs/

Related

• File: pyproject.toml
• Python version requirement: >=3.10

Inspect the dependencies list in pyproject.toml, then run the provided grep checks across multibase/, tests/, and docs/. Remove the unused six entry and confirm that no imports or references remain; the Python >=3.10 requirement and the remaining dependencies should be unchanged.