python-code

Using a src layout in Python projects separates importable package code into a `src/` directory, preventing accidental local imports during testing. This structure requires a `pyproject.toml` for packaging configuration and a root-level tests directory to ensure clean dependency isolation.

Setting up a virtual environment for Python uses `venv` or `poetry` to create an isolated workspace. This isolates project dependencies, allowing you to pin specific package versions and prevent conflicts with the system-wide Python installation during development.

Using SQLite safely in Python requires parameterized queries to prevent SQL injection and maintain data integrity. You should design lightweight schemas, implement safe data access patterns, and establish regular backup routines to protect your database records.

A flat layout suits tiny scripts where simplicity is key, while a src layout is preferred for small libraries to ensure tests run against installed code. Choosing between flat and src layouts depends on project scale and the need for strict import isolation.

Documenting bug fixes in a Python project involves writing clear docstrings for modules and functions, maintaining a changelog for version tracking, and using descriptive commit messaging. This practice records rationale and ensures all project modifications remain traceable.