New submission from Manuel Bärenz <man...@enigmage.de>:
In C++, the the approach to the namespace problem is having different
namespaces that should not contain different definitions of the same name.
Members of a namespace can be accessed explicitly by e.g. calling "std::cout <<
etc." or "using namespace std; cout << etc."
I understand Pythons approach to be "objects can be used as namespaces and
their attributes are the names they contain". I find this a very beautiful way
of solving the issue, but it has a downside, in my opinion, because it lacks
the "using" directive from C++.
If the object is a module, we can of course do "from mymodule import spam,
eggs". But if it is not a module, this does not work.
Consider for example:
class Spam(object):
def frobnicate(self):
self.eggs = self.buy_eggs()
self.scrambled = self.scramble(self.eggs)
return self.scrambled > 42
This could be easier to implement and read if we had something like:
class Spam(object):
def frobnicate(self):
using self:
eggs = buy_eggs()
scrambled = scramble(eggs)
return scrambled > 42
Of course this opens a lot of conceptual questions like how should this using
block behave if self doesn't have an attribute called "eggs", but I think it is
worth considering.
----------
messages: 128153
nosy: turion
priority: normal
severity: normal
status: open
title: Add a feature similar to C++ "using some_namespace"
type: feature request
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11146>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
