Can Python make a large program with lots of gigabytes?

[micseydel]

So does that mean it won't be slower if it makes a program with lots of Gigabytes?

Python does not differ from other languages, such as C, in its behavior. If you need more memory than the computer has, your program will slow down (or crash). Processing 2 gigabytes of data will typically take about twice as long as processing 1 gigabyte of data, assuming there's enough memory in each case.