April 2019
Intermediate to advanced
646 pages
16h 48m
English
Content preview from Expert Python Programming - Third Edition
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PyPy
PyPy is probably the most exciting alternative implementation of Python, as its goal is to rewrite Python in Python. PyPy in the Python interpreter is written in Python. We have a C code layer carrying out the nuts-and-bolts work for CPython. But in PyPy, this C code layer is rewritten in pure Python.
This means that you can change the interpreter's behavior during execution time, and implement code patterns that couldn't be easily done in CPython.
PyPy is currently fully compatible with Python version 2.7.13, while the latest PyPy3 is compatible with Python version 3.5.3.
In the past, PyPy was mostly interesting for theoretical reasons, and it interested those who enjoyed going deep into the details of the language. It was not generally ...