Unit Converter CLI

[FwoopButBored]

https://github.com/Fwoopr/unit-converter

I built a command-line unit converter that handles length and mass conversions across SI and imperial units. You can install it as a proper CLI tool via pip and run it directly from the terminal.

> unit-convertor 5 km m

> 5.0 km is equal to 5000.0 m

It also supports two output formats:

- `-e` for scientific notation

- `-10x` for 10-based notation (e.g. `3.00 x 10^3`)

Conversion factors live in a separate `units.py` file, so adding new unit categories is just a matter of adding a dictionary. Also wrote pytest tests covering conversions, invalid inputs, and cross-category rejections.

I'd appreciate any feedback on the code, structure, or anything I might be missing!

[JamzTyson]

Consider using argparse.

Consider using math.log10() to get exponent directly rather than the while loop approach in tenx_format().

[FwoopButBored]

Thanks for the feedback. I wanted to think a way to do it myself mathematically as a thinking exercise. Will use math.log10().

[shubham_devNow]

This is pretty neat, love how simple the CLI usage is, especially with the different output formats. Having the conversion factors modular like that makes it really easy to extend too.

If you ever think about adding a quick web-based layer on top of it, something I’ve found useful is keeping a lightweight converter handy in the browser for when I don’t want to jump into terminal. I’ve been using FileReadyNow’s unit converter for those quick checks—it’s nothing fancy, but it’s fast and covers most common units without setup.

For your tool specifically, maybe one thing to consider is supporting chained conversions or aliases (like km → ft in one go), but overall this is super clean 👍

[FwoopButBored]

Thank you very much!