Resources

• Python Unicode HOWTO: encoding/decoding and string representation.
• CSV library, JSON library and hashlib: reference lookup while implementing the three boundaries.
• Python for Everybody, Charles Severance: optional accessible book/course route for files, dictionaries and data processing. Its official site offers legal reading formats; use matching sections instead of starting another full course.

Full-book reading is not required. Our CSV schema, size limit and assessments are original curriculum choices. The standard-library implementation targets Python 3.9+; documentation may display a newer version, so avoid adopting unrelated new APIs without checking your runtime.