WANG Cong wrote:
On 06/29/10 17:48, Andre Alexander Bell <p...@andre-bell.de> wrote:
As said previously I don't think one should differentiate between meta
programming and programming within the language, since the former is
nothing different than the latter.
If you check other programming language rather than Python, it is
different. Even in Ruby which is also a dynamic language.
If Python were going to be the same as other languages, what would be
the point of having Python?
So far I only did tell you _how_ it is in Python. If I understand your
question about the design of the language correctly than you would like
Python to detect the typo. Let's for the moment assume that the
declaration would be decoupled from assigning a value.
Nope, I would like Python not to allow adding a new attribute via an
assignment by default, detecting the typo is a side-effect.
I, for one, am very happy that Python allows it -- if I wanted to jump
through hoops for simple things I'd use some other language.
But if so why setattr() still exists? What is it for if we can do the
same thing via assignments? Also, in order to be perfect, Python should
accept to add dynamic attributes dynamically, something like PEP
363. That doesn't happen.
Setattr and friends exist to work with dynamic attributes.
"The Perfect Language" does not exist, and never will. I'm not even
sure it could exist for a single person, let alone a group of people
with disparate needs, patterns of thought, etc.
~Ethan~
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