dictionary update

[Chris]

I have a instance attribute self.xds and a local variable xds in the
instance . Both are dictionaries. I understand that I can update
self.xds with xds as follows: self.xds.update(xds)

However I have many instance attributes, self.i, and local variables i.
I'd like to be able to do this:

for i in list_of_i's:
self.i.update(i)

How can this be done (I'm assuming it can be).

thx Chris

[Sion Arrowsmith]

Chris <cf*****@bigpond.net.auwrote:

>I have a instance attribute self.xds and a local variable xds in the
instance . Both are dictionaries. I understand that I can update
self.xds with xds as follows: self.xds.update(xds)

However I have many instance attributes, self.i, and local variables i.
I'd like to be able to do this:

for i in list_of_i's:
self.i.update(i)

How can this be done (I'm assuming it can be).

I think what you want is:

for i in list_of_is:
getattr(self, i).update(locals()[i])

assuming list_of_is is a list of names not a list of the local
dicts (ie ["xds", ...] not [xds, ...]).

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[Steve Holden]

Chris wrote:

I have a instance attribute self.xds and a local variable xds in the
instance . Both are dictionaries. I understand that I can update
self.xds with xds as follows: self.xds.update(xds)

However I have many instance attributes, self.i, and local variables i.
I'd like to be able to do this:

for i in list_of_i's:
self.i.update(i)

How can this be done (I'm assuming it can be).

thx Chris

Well, I'm note sure you have explained the problem fully, but if what
you mean is that you want to update an instance's variables from a
dictionary this can be achieved with

self.__dict__.update(xds)

regards
Steve
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