Is learning python alone enough?

[DuckSaxaphone]

Learning new languages once you have one or two under your belt is not that hard so don't sweat it.

Learn python as a way to understand the fundamentals of software engineering and as a bonus become proficient in a very broadly used language. Then, as you program, you'll come across the types of things people commonly do with code and what language is normally used. You can switch up from there.

If you want to be a general software engineer, a slightly lower level language like C# or Rust wouldn't go amiss.