Making Mydict["foo/bar"] Look Up Mydict["foo"]["bar"]

I have a nested dictionaries root ={ 'user':{ 'Johnson':{ 'incoming':2000, 'family' :4, 'play':None } 'Smith':{ 'incoming':17000, 'fami

Solution 1:

How about something like this:

classFoo(dict):
    def__setitem__(self, key, value):
        parts = key.split('/', 1)
        iflen(parts) == 2:
            if parts[0] notin self:
                self[parts[0]] = Foo()
            self[parts[0]].__setitem__(parts[1], value)
        else:
            super(Foo, self).__setitem__(key, value)

    def__getitem__(self, key):
        parts = key.split('/', 1)
        iflen(parts) == 2:
            return self[parts[0]][parts[1]]
        else:
            returnsuper(Foo, self).__getitem__(key)

You can use it like this:

In [8]: f = Foo()

In [9]: f['a/b/c'] = 10

In [10]: f['a/b/c']
Out[10]: 10

Solution 2:

root ={
  'user':{
    'Johnson':{
      'incoming':2000,
      'family'  :4,
      'play':None
    },
    'Smith':{
      'incoming':17000,
      'family'  :1,
      'play':False           
    }
  }
}


classmyDict(dict):
    'my customer dictionary'def__setitem__(self, key, val):
        _, first, second, third = key.split('/')
        print first, second, third

        firstDict = self[first]
        secondDict = firstDict[second]
        dict.__setitem__(secondDict, third, val)




a = myDict(root)
print a
a['/user/Smith/play'] = 'hi there'print a