[Tutor] advice: making dictionary from two lists?

[Roeland Rengelink]

Lance E Sloan wrote:
> 
> I've got a couple lists, one is of labels and the other is values.
> They have a one-to-one correspondence.  Currently, I'm using this
> method to make them into a dictionary:
> 
>     labels = ('name', 'age', 'salary')
>         values = ('Monty', 42, 5)
> 
>     # make a dictionary from two lists/tuples
>     theDict = {} # or whatever you want to call it
>     for (key, value) in map(None, labels, values):
>         theDict[key] = value
> 
> This works fine, but I just wondered if there was a better (or
> "cooler") way to do this.  I wish that dictionaries had an inverse of
> the items() method.
> 

Hi Lance,

I can't think of a better way (which doesn't mean that much)

I wouldn't call it cool, and there are plenty reasons not to go here.
But, your wish is my command

from UserDict import UserDict

class genie_dict(UserDict):
    def inverse_of_items(self, item_list):
        for key, value in item_list:
            self.data[key] = value
    
g = genie_dict()
g.inverse_of_items(zip(('name', 'age', 'salary'), ('Joe', 42, 6000)))
print g

will result in:

{'age': 42, 'name': 'Joe', 'salary': 6000}


On a more serious note:

Your dict looks suspiciously like an employee record, which might
indicate
an EmployeeRecord class

Hope this helps,

Roeland

-- 
r.b.rigilink@chello.nl

"Half of what I say is nonsense. Unfortunately I don't know which half"