[Python-Dev] PEP 457: Syntax For Positional-Only Parameters (original) (raw)

Larry Hastings larry at hastings.org
Wed Oct 9 21:41:53 CEST 2013

On 10/09/2013 07:50 PM, Eli Bendersky wrote:

I'm not sure what you call "parsing". This?

>>> def myfoo(*args): a, b = args; print("%s, then %s" % (a, b))

From the Argument Clinic PEP (436):

The primary implementation of Python, "CPython", is written in a
mixture of Python and C. One implementation detail of CPython is
what are called "built-in" functions -- functions available to
Python programs but written in C. When a Python program calls a
built-in function and passes in arguments, those arguments must be
translated from Python values into C values. This process is called
"parsing arguments".

I should probably amend that, because deciding how to map arguments to parameters is also part of "parsing arguments".

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