Secret Recipes of the Python Ninja

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Of course, there are ways to improve code, such as actually using a loop rather than an iterator, but this demonstrates a couple of points:

• Just because PyPy is being used doesn't mean that it will improve program performance. Not only do you have to ensure that the PyPy subset of Python commands is utilized, it also means that the code has to be written in a manner that utilizes the improvement capabilities of PyPy.

• While maximum performance can be achieved using a compiled language, using PyPy means that you don't have to bother rewriting your code very often. Of course, if your code is taking a long time to process, but can't be optimized for PyPy, then compiling may be your best bet.

  For example, writing a C version ...