On Thu, Jul 14, 2011 at 12:06 AM, ArrC <justmailnav...@gmail.com> wrote: > So, i want to know what are the core diff btw PyPy and Python ?
Python is a language; PyPy is one implementation of that language. The "classic" implementation of Python is CPython, not to be confused with Cython; there are a few others as well. If you talk of "installing Python", it probably means CPython. > And they also talked about the lack of type check in python. > > So, how does it help (strongly typed) in debugging? Sloppy but brief explanation: Python's variables are typeless; its objects are strongly typed. Longer explanation: Every piece of data in Python is an object. Objects can be referenced by names; one object can have more than one name pointing to it. Any name can point to any value, which is somewhat the opposite of "strongly-typed variables" in other languages. For instance: a = "Hello" # a points to or "holds" a string a = 234 # a now points to an integer a = 1.0 # a now points to a float a = [1,2,3] # a now has a list (array) In debugging, all you generally care about is "what does this object point to". I guess whether or not this makes things easier or harder depends a lot on what sort of bugs you're tracking down. Hope that helps! Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
