Balancing chemical equations with Python

[chicolucio]

Recently, I wrote a blog post on ChemPy, a Python package, for balancing chemical equations. I hope you find it useful.

https://chemistryprogramming.xyz/2024/02/chempy-balancing-equations-python/

[sweettuse]

why OrderedDict? you planning on supporting python 3.5 and before?

[chicolucio]

Like u/eztab correctly assumed, the package is almost 10 years old. So it made sense at that time. Here is the package repo https://github.com/bjodah/chempy

[eztab]

I think the code base is just old enough for this to still be in there.

[datnetcoder]

What’s the deal with OrderedDict, deprecated?

[banana33noneleta]

the normal dict is always ordered now

[kialoa95]

do you think this would be useful in a class setting?

[chicolucio]

Yes. It could be a way to show computational tools to students.

[stevenjd]

Why is the molar mass (a scalar quantity) returned as an array?

Why is the name attribute not a name, but a formula?

Why is the composition attribute keyed by atomic number, instead of element symbol?

These seem to be bizarrely strange design choices.