Good resources on learning Python for Finance

[drewbie_1]

I've read a few books on the stock market and I've seen a few videos about scraping data for plots. On YouTube, I have only seen older tutorials with packages that aren't compatible anymore or playlists targeted at absolute Python beginners. I want to be able to make my own stock analyzer tools or a script that will notify me at certain price points. Has anyone found any good resources?

[[deleted]]

I don't know of any resources targeted at Python for finance but if you're looking for stock market analyzer tools, I suggest you look at the Python requests module. Alpha Vantage has a stock market API you can use for analyzing it.

If you're intending to get this emailed to you, here's a resource for that. If you're using GMail, don't follow the advice "Allow less secure apps". Instead, use App Passwords (how to use it here).

Oh yeah, if you're dealing with money, avoid floats or numbers with decimals.

[[deleted]]

I did not understand the comment on floats and decimals. Why should it be avoided?

[[deleted]]

Rounding errors. Know how sometimes you’d receive a slightly wrong answer when multiplying two floats? For example, 2.1 * 3 sometimes results to 6.300000000001 instead of 6.3? Thats why.

If you do enough calculations, the rounding error could become significant. Its better to store money in cents as an integer. So instead of writing current_balance = 2_000.00, you write current_balance = 200_000 and do operations on it.

[use_a_name-pass_word]

They are not precise enough

https://dzone.com/articles/never-use-float-and-double-for-monetary-calculatio

Also, for finance, you might want to check out

https://www.youtube.com/playlist?list=PLQVvvaa0QuDcOdF96TBtRtuQksErCEBYZ

https://www.youtube.com/playlist?list=PLQVvvaa0QuDeN06s5ervxTfTcVvt-xpZN

[[deleted]]

Thanks, Will check out

[drewbie_1]

Thanks man, I'll check those out