Alright, let me walk you through this ‘tony pauline’ setup I wrestled with recently. It wasn’t exactly a walk in the park, but I got there in the end, and figured I’d share how it went down.
The Initial Setup
So, the situation was like this: we had this really old system, which internally we just called Tony. It did its job, churned out data, but man, it was ancient tech. Think flat files dropped into a folder at weird times. On the other side, we had a newer component, let’s call her Pauline. Pauline needed the data Tony produced, but expected it nicely formatted via a modern API.
The main goal was simple: make Tony and Pauline talk to each other without manual work. Sounds easy, right? Well…
Getting Hands Dirty
First thing I did was dig into Tony’s output. Confirmed, yeah, just plain text files, fixed-width columns. Super old school. Pauline, according to her docs, needed JSON payloads sent to a specific web address.
My first move was to whip up a script. I figured a simple Python script could watch Tony’s output folder. Setting up the folder watching part was actually pretty smooth. Used a library for that, and it started detecting new files almost immediately. Good start.
Then came parsing those Tony files. Ugh. Fixed-width is always a pain. Had to carefully figure out the start and end character positions for each piece of data. Spent a good chunk of time just getting that right, testing with different files Tony spat out.

Once I could read the data, I needed to package it up for Pauline. This meant converting the extracted strings into a JSON object. I followed Pauline’s API documentation carefully to get the structure right. Sent off the first test request. Denied. Pauline’s API was super strict about data types. Tony’s files were just text, but Pauline expected numbers (integers, decimals) for certain fields.
Back to the script. Added logic to convert the data types – turning “123” into the number 123, “99.50” into the decimal 99.5, etc. Tested again. Better, but then hit other issues. Sometimes Tony’s files had weird symbols or missing fields. The script would just crash. Not good.
So, added more code to handle these errors gracefully. If a field was missing, use a default value. If data looked weird, log it and skip that record, but keep the script running for other data. Lots of trial and error here.
Finally, after a bunch of tweaking and testing, I had a successful run. The script saw a new file from Tony, read it, cleaned the data, converted types, built the correct JSON, and sent it to Pauline. Pauline accepted it! Felt like a real breakthrough.
Hitting Roadblocks
Looking back, the biggest pain point was definitely bridging the gap between Tony’s ancient file format and Pauline’s modern API requirements. It was like translating between two completely different languages and cultures.

Making the script robust enough to handle Tony’s occasional quirks was also a significant challenge. You can’t just assume the input data will always be perfect, especially from older systems. Building in that resilience took time but was absolutely necessary.
The Result
In the end, I got this little bridge working reliably. The script sits there, watches Tony, and feeds the data to Pauline whenever something new appears. It’s not the fanciest thing in the world, maybe a bit of glue and tape, but it works automatically now. Data flows, systems are connected, and manual work is gone. That was the whole point, so, job done.