I'm a Java programmer and if there's one thing that I dislike about it, it would be speed. Java seems really slow, but a lot of the Python scriptsprograms I have written so far seem really fast. 
So I was just wondering if Python is faster than Java, or C# and how that compares to C/C++ (which I figure it'll be slower than)?
For the Python, velocity depends also for the interpreter implementations... I saw that pypy is generally faster than cpython.
How fast is Python?