It probably would have confirmed relatively quickly anyhow.

Right now the Johoe mempool (https://core.jochen-hoenicke.de/queue/#2h) only has ~0.5 MB of transactions at or above a fee rate of 5 satoshis per byte.

Another option is just to double spend your transaction if your wallet supports it. Always enable replace by fee (RBF) if your wallet supports it then you can replace your transaction with a higher fee if you feel its taking too long. Some wallets support forgetting/abandoning transactions (Bitcoin Core does) after which you can recreate it with a higher fee rate, just make sure you use at least one of the same inputs your old transaction used so that its impossible to double pay the recipient.

Double spending your tx would probably have cost much less then $10 in the current fee market.

There are a lot of bitcoin projects built with Python.

Large ones (Electrum, Armory), libraries and utility scripts.

If I am starting a larger bitcoin project I would probably prefer a language with static type checking but still has similar memory safety (like C# or Java/Kotlin)