wrist friendly dictionary
(Python recipe)
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this dictionary allows easy manual creation of nested hierarchies, like so:
window.style.width=5
or...
window['background-color'].rgb= 255,255,255
Python, 13 lines
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13 | class easyaccessdict(dict):
def __getattr__(self,name):
if name in self:
return self[name]
n=easyaccessdict()
super().__setitem__(name, n)
return n
def __getitem__(self,name):
if name not in self:
super().__setitem__(name,nicedict())
return super().__getitem__(name)
def __setattr__(self,name,value):
super().__setitem__(name,value)
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By example:
>>> d= easyaccessdict()
>>> d
{}
>>> d.foo.bar= 'a'
>>> d
{'foo':{'bar':'a'}}
>>> d['foo']
{'bar':'a'}
>>> d['foo'].blah= 7
>>> d
{'foo':{'bar':'a', 'blah':7}}
>>> d.a.b.c.e.e.f.g.h= 11
etc.
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1 comment
Note that you can make this even terser by implementing __missing__:
class easyaccessdict(dict):
def __getattr__(self, name):
return self[name]
def __setattr__(self, name, value):
super().__setitem__(name,value)
def __missing__(self, name):
super().__setitem__(name, easyaccessdict())
return super().__getitem__(name)
Also, super should be called using super(easyaccessdict, self) for this to work in python 2.
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