Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #19869

Re: Help about dictionary append

References <CAKhY55NYDVe=TthHRe0-CaitRY-yawVvB-YPqOG8sOLkVvZ=+g@mail.gmail.com>
Date 2012-02-06 02:20 +1100
Subject Re: Help about dictionary append
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.5446.1328455252.27778.python-list@python.org> (permalink)

Show all headers | View raw


On Mon, Feb 6, 2012 at 2:13 AM, Anatoli Hristov <tolidtm@gmail.com> wrote:
> Hi there,
>
> I`m again confused and its the dictionary. As dictionary does not support
> append I create a variable list with dictionary key values and want to add
> new values to it and then copy it again to the dictionary as I dont know
> other methods.

A dictionary maps a key to exactly one value. If you want multiples,
you do pretty much what you've done here...

> mydict =
> {'Name':('Name1','Name2','Name3'),'Tel':('023333','037777','049999')}
>...
> and I get and error that TUPLE object has no attribute Append !!!
>
> But how to add new Values to a dictionary then ?

... but instead of using parentheses and creating a Tuple, use square
brackets and create a List:

mydict = {'Name':['Name1','Name2','Name3'],'Tel':['023333','037777','049999']}

Then you can append to it, and it will work just fine!

Chris Angelico

Back to comp.lang.python | Previous | Next | Find similar | Unroll thread


Thread

Re: Help about dictionary append Chris Angelico <rosuav@gmail.com> - 2012-02-06 02:20 +1100

csiph-web