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Line KJ-144 Platform 4 · Automation & CLI Tools

Data Wrangling Wagons: 150 CSV and JSON Scripts

150 small scripts to clean, merge, split, reshape and validate CSV, JSON and Excel files from the command line.

475 builders

PN Maintained by Priya Nair

  • Last updated October 2026
  • English
  • 25m of walkthroughs
  • 150 files

What you get

5 items in the box

Every bullet below is in the download, working, the moment your payment clears.

  • 150 file-wrangling scripts with sample data
  • Python with jq and Bash alternatives
  • Encoding, date and phone-number normalisation
  • Schema validation for incoming files
  • Pay any fare from €1 to €100 — each euro unlocks 1.5 scripts

What's in the box

6 parts · 150 files · 25m of walkthroughs

25 files with a 3m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 4m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 5m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 6m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 3m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 4m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

6 parts · 150 files

25m total length

You will need

Short list, and deliberately so. If you meet these you can start today.

  • Python 3.11+, optionally jq

About this product

Somebody always sends a spreadsheet. Data Wrangling Wagons is 150 tested scripts for the jobs that follow: deduplicate rows, split a file by a column, merge exports, fix encodings, normalise dates and phone numbers, flatten nested JSON, convert between CSV, JSON Lines and Excel, and validate files against a schema.

Scripts are written in Python with jq and Bash equivalents where they are simpler, each with a usage line and a sample file to try it on. Your fare unlocks script groups in order.

You choose the fare: anything from €1 to €100, in whole euros. At €100 you get every part, plus all future additions to it.

Frequently asked questions

Still unsure about something? Write to our contact page and a human answers, usually the same working day.

Pick any whole-euro fare from €1 to €100. Each euro unlocks 1.5 scripts, and parts unlock in the order listed on this page, so you see exactly what your fare includes before you pay.

No. New scripts added to the parts you have unlocked appear behind the same download link at no extra cost.

Checkout is handled on our provider's secure payment page. The moment your payment clears we email your personal access link and access code to the address you used at checkout, and the same link appears in your account library. There is nothing to install and nothing to wait for.

Email within 14 days of your purchase, quote your order number, and we refund the full amount to your original payment method. No form to fill in and no questions about how much of the product you watched.

What builders say

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Your maker

PN

Priya Nair

Python automation and cross-platform app engineer

  • 2,369 builders aboard
  • 6 products published
  • 4.6 maker rating
  • Python
  • FastAPI
  • Playwright
  • Flutter
  • Offline-first apps

Priya automates the dull parts of data and operations work for a living and builds field apps that have to work without a signal. She maintains the Python automation tools and the Flutter starter, with a strong preference for small, tested modules over clever frameworks. Everything she releases is tested on the oldest device and OS version it claims to support.

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