← Back to Explainer
AWS Transform Custom — Completed

Python 3.8 → Python 3.13 Migration

Modernization of emoji-algebra — pytest upgrade, f-string conversion, and documentation update. Powered by AWS Transform agentic AI.

3/3
Steps Completed
48/48
Tests Passing
4/4
Criteria Pass
0
Failures

01Transformation Timeline

3 sequential steps — each verified with 48 passing tests before proceeding.

Step 1 Upgrade pytest dependency to Python 3.13-compatible version ✓ PASS ▸
  • Updated requirements.txt: pytest==6.2.5 → pytest>=8.0.0
  • pytest 9.0.3 installed (latest compatible version)
  • Eliminated ast.Str, ast.Num, ast.NameConstant deprecation warnings
requirements.txt
✅ 48 tests passed — Python 3.13.13, pytest 9.0.3
Step 2 Modernize Python code syntax — .format() → f-strings ✓ PASS ▸
  • Converted 25+ .format() calls to f-strings across app.py
  • generate_system_of_equations() — easy, medium, hard branches
  • display_puzzle() — question display formatting
  • get_hint() — hint text generation (first, second, final)
  • play_puzzle() — new puzzle, correct answer, hints, give up
  • main() — score display, quit section
app.py
✅ 48 tests passed — zero .format() calls remaining
Step 3 Update documentation and version references to Python 3.13 ✓ PASS ▸
  • Overview: "Python 3.8" → "Python 3.13"
  • Prerequisites: "Python 3.8 or higher" → "Python 3.13 or higher"
  • Venv commands: python3.8 → python3.13, .venv38 → .venv313
  • Technical Details: version reference updated
  • Dependencies: "pytest==6.2.5" → "pytest>=8.0.0"
README.md
✅ 48 tests passed — documentation accurate

02Code Transformation

The most visible change: .format() string formatting → modern f-strings throughout app.py.

Before (Python 3.8)
After (Python 3.13)
print("🎯 New puzzle! Difficulty: {}".format(difficulty))

hint = "The value of {} is {}".format(emoji, value)

print("Score: {}/{}".format(correct, total))

eq_str = "{} + {} = {}".format(e1, e2, result)

msg = "Correct! {} = {}".format(emoji, answer)
print(f"🎯 New puzzle! Difficulty: {difficulty}")

hint = f"The value of {emoji} is {value}"

print(f"Score: {correct}/{total}")

eq_str = f"{e1} + {e2} = {result}"

msg = f"Correct! {emoji} = {answer}"

03What Changed

Three focused modernization areas — minimal, safe, and fully verified.

📦 Dependency Upgrade

pytest 6.2.5 → 9.0.3. Eliminated Python 3.12+ deprecation warnings (ast.Str, ast.Num, ast.NameConstant removed in 3.12).

requirements.txt

✨ f-string Modernization

25+ .format() calls converted to f-strings across all functions in app.py. Cleaner, faster, more readable — the idiomatic Python 3.6+ way.

app.py · 25+ instances

📝 Documentation Update

README.md updated with Python 3.13 references, new venv commands, and updated dependency versions. Accurate for anyone cloning the repo.

README.md · 5 changes

04Validation Results

5 exit criteria evaluated — 4 PASS, 1 NOT APPLICABLE. Zero failures.

Overall Compliance100% (4/4 applicable criteria pass)
✓
All code runs on Python 3.13 without syntax errors
Verified via py_compile and full test suite execution
✓
Unit tests pass with same or better success rate
48/48 tests pass on Python 3.13.13 with pytest 9.0.3
✓
All dependencies compatible and installed
pytest>=8.0.0 + transitive deps (iniconfig, packaging, pluggy, pygments)
✓
Documentation updated to reflect Python 3.13
README.md: version refs, venv commands, dependency versions
—
Deployment scripts updated
Not applicable — no deployment scripts in this project