Pierre Barbier de Reuille wrote: > Fuzzyman a écrit : > > The following two passages from the python documentation *appear* to > > contradict each other. Equally possible (or more likely !) is that I > > misunderstand it : > > > > eval : > > This function can also be used to execute arbitrary code objects (such > > as those created by compile()). In this case pass a code object instead > > of a string. The code object must have been compiled passing 'eval' as > > the kind argument. > > > > > > compile: > > The kind argument specifies what kind of code must be compiled; it can > > be 'exec' if string consists of a sequence of statements, 'eval' if it > > consists of a single expression, or 'single' if it consists of a single > > interactive statement (in the latter case, expression statements that > > evaluate to something else than None will be printed). > > > > The docs for compile say that if you are creating a code object from a > > sequence of statements you must use the kind argument 'exec'. Eval says > > that if you are using the eval function you must use 'eval' as your > > kind argument. > > > > In practise I have found that using the eval function with code objects > > compiled with 'exec' as the kind argument works fine. Is this a 'bug' > > in the docs ? > > Regards, > > > > Fuzzy > > http://www.voidspace.org.uk/python/index.shtml > > > > IMO, it's just logical the code sent to "eval" was compiled with "eval" > as the kind argument. But don't forget the documentation is kind of > "abstract" and that CPython is _just_ an implementation (ok, it's the
> reference implementation) of python. You'd better follow the doc if you > want your code to work on other Python implementation (ie. JPython, ...). > Yes.. but that would mean that eval could only run code objects that "consist[s] of a single expression".. which I doubt is the reality or the intention. Regards, Fuzzyman http://www.voidspace.org.uk/python/index.shtml > Pierre -- http://mail.python.org/mailman/listinfo/python-list
