Code Lab BetaBUILD. RUN. DISCOVER.

Code Lab is in development. New lessons and improvements are on the way. Progress can be deleted.

PYTHON FILES / CHAPTER 05 / Learn / LESSON 09

Nested Rows.

About 5–10 minutes

Before a JSON file — data in memory:

rows = [ {"sku": "A1", "qty": 2}, {"sku": "B2", "qty": 1}, ] summary = {"count": len(rows), "first": rows[0]["sku"]} print(summary["first"]) print(summary["count"])

A list of dicts is a typical row shape. Nested keys and lists will serialize with json.

Your lesson

rows = [{"sku": "A1", "qty": 2}, {"sku": "B2", "qty": 1}]. summary = {"count": len(rows), "first": rows[0]["sku"]}. Print first, then count. Expected: A1, then 2.

Learn: prep for JSON.

lesson_09.pyPYTHON

Loading the runtime… The first launch may take a little longer.

… 0/20000

STANDBY

profile.logIDLE

> waiting for profile dict…
> age / height / weight: —
▌

Code Lab

PROFILE IDLE

01rows list

02summary dict

03console A1 / 2

ConsoleWrite the code. Bring it online.

›

Progress in Profile →

PYTHON FILES / CHAPTER 05KALKULATORI.BG

Code Lab BetaBUILD. RUN. DISCOVER.

Code Lab is in development. New lessons and improvements are on the way. Progress can be deleted.

Loading…

PYTHON LABKALKULATORI.BG