On 07/02/2016 08:44 PM, Steven D'Aprano wrote:
Try getting this behaviour from within a class:
class Food(metaclass=Namespace):
# (1) no special decorators required
def spam(n):
return ' '.join(['spam']*n)
# (2) can call functions from inside the namespace
breakfast = spam(5)
# (3) no "cls" or "self" argument
def lunch():
# (4) can access variables using their undotted name
return breakfast + ' and eggs'
def supper():
# (5) likewise functions (a special case of #4)
return lunch() + ' and a fried slice of spam'
def mutate(n):
# global inside the namespace refers to the namespace,
# not the surrounding module
global breakfast
breakfast = spam(5)
Can you do all of that with an ordinary class?
You can get #2 already, but not the rest (without your spiffy code ;) :
Python 3.5.1+ (3.5:f840608f79da, Apr 14 2016, 12:29:06)
[GCC 4.8.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> class Huh:
... def blah(text):
... print('blah blah %s blah blah blah' % text)
... blah('whatever')
...
blah blah whatever blah blah blah
--
~Ethan~
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