Secret Recipes of the Python Ninja

How to do it...

1. To run PyPy, simply go to the location where you placed the binary and call PyPy:

As can be seen, it looks like a standard Python interactive interpreter, so you can experiment with your code as normal.

2. For a simple test to demonstrate how quick PyPy compares with normal Python, we will make a couple of files, as well as a C file, to see how well PyPy's JIT compiler compares:

• • We save the following as add_funct.py:

                 def add(x, y):                      return x + y 

• • The following is loop_funct.py:

                  from file1 import add                      def loop():                          i = 0                          a = 0.0                          while i < 1000000000:                                  a += 1.0                              add(a, a)                              i += 1                      if __name__ == "__main__":                          loop()