On Thu, Oct 13, 2016 at 12:46 AM, Pierre-Alain Dorange <pdora...@pas-de-pub-merci.mac.com> wrote: > Terry Reedy <tjre...@udel.edu> wrote: > >> > Using this function, the code is "compiled". >> > I do not think this function is often used and most python project >> > simply use the interpreter (which do a small translation into byte-code >> > to be faster and check syntax error before running interpretation >> >> You seem to be confusing CPython with, for instance, simple BASIC >> interpreters that tokenized the code, translated keywords to function >> numbers, and did other 'small translations' before execution. >> >> The CPython compiler lexes (tokenizes), ll(1) parses to a syntax tree, >> does some analysis and transformation of the tree, and translates it to >> the bytecode for an stack machine. All done using standard compiler theory. > > Yes i'm probably confusing things ; i've not explore Python > implentation, i'm just an amateur developer. > But what confuse me, is that Python require "real live" interpratation > of the code to work properly (or perhaps i also confuse on that but > Python rely on interpretation of the code to conform to its own > standard, ie variables can change type during execution...)
Variables don't have types; objects do. A variable in Python always holds a thing of type 'object', and everything in Python is a subclass of object. This doesn't stop Python from being compiled - you could do the exact same thing in C++ or Java. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
