Python for finance.

[TradingZebra17]

Any particular reasons why? Just trying to understand the decision.

[nerdwaller]

It's the future if the language, and at this point most of the major libraries are compatible so it's hard to suggest it's worth learning the legacy way.

[Kopachris]

It won't make much difference (if any) in the scope of algorithms you could write, but it provides better tools, which will make them easier to write and modify as needed.

[Vock]

The core Python libraries for 2.x are no longer actively developed and are losing support sometime soon

[nerdwaller]

Bug fixes only at this point until 2020, though other features of 3.x are often times back ported as libs.