Sorted names put the config line first

Lesson map

Lesson 09. Map, example, EX055.

flowchart TD
  I["Dict insertion: model, tokenizer, config"] --> S["sorted(received) reorders the names"]
  S --> P["config.yaml prints first"]

The check's order is alphabetical. The JSON object's order is not.

Logical drawing

config.yaml     MISMATCH
model.bin       MISMATCH
tokenizer.json  OK

Learning outcomes

After this chapter, you should be able to:

1. Read the three status lines from top to bottom.
2. Explain why config.yaml leads even though it was inserted last.
3. Refuse a reading that treats the JSON order as the check order.

9.1 The loop iterates sorted(received), and the format width is 15.

sorted(received.items()) orders by the file name. config.yaml sorts before model.bin, and model.bin sorts before tokenizer.json. That is why the status block begins with the config line. The JSON object above it was built from the manifest dict, whose insertion order is model, tokenizer, config. Two orders appear in one print. They answer different questions.

The format is f"{n:15s} {'OK' if ok else 'MISMATCH'}". The name occupies 15 characters, then a space, then the word. config.yaml is 11 characters, so four pad spaces sit inside the width and one more space separates the word. tokenizer.json is 14 characters, so the pad inside the width is a single space and the separator adds another. Tokenizer equality against manifest[n] is what prints OK. config.yaml and model.bin each recompute a hex string that differs from the stored digest, so those status words fail. Alphabetical position does not assign the failure.

Lesson table; scroll horizontally to read all columns →

9.2 Worked example

Lesson table; scroll horizontally to read all columns →

Synthetic case. Sorting these three names is a property of the loop, not of a model registry.

Errors and limits

Reading the status block as if it followed insertion order assigns the OK to the wrong file.

Apply

• EX055 — Sort order. Why does config.yaml print before model.bin, and which line is OK?
  Show marking criteria

  Rubric: 3 = sorted puts config.yaml, model.bin, tokenizer.json; only the tokenizer line is OK; JSON insertion order is different;; 2 = alphabetical status order and the OK line;; 1 = names the OK file only;; 0 = follows JSON order.