so its valid python code to write the expression
innerDict['+newinnrkey+']
without enclosing the parts outside of the plus-signs surrounding the
"newinnrkey" variable within quotes or double quotes?
I'm not sure I've ever heard or seen such python code before anywhere.
Can you explain or point me to some docs on this type of code expression?
And are there any gotchas or problems coding expressions like this?
Thanks for the help.
Henry
On Tuesday, March 10, 2015 at 4:34:34 PM UTC-5, ke1g wrote:
> eval() operates on an expression, not a statement. Assignment makes it a
> statement.
>
> Why wouldn't you just say:
>
> innerDict['+newinnrkey+'] = newinnrval
>
>
> On Tue, Mar 10, 2015 at 5:25 PM, Henry Versemann <fence...@gmail.com
> <javascript:>> wrote:
>
>> I have a new dictionary that I want to build, using data from another
>> dictionary. I have a view which is receiving a single key/value pair
>> from the original dictionary. Then in the view I've defined the new
>> dictionary like this:
>>
>> innerDict = {}
>>
>> Now I want to make this as dynamic as possible so I'm trying to use the
>> "eval()" statement below to add the new key/value pair to the new
>> dictionary, which is declared above. Will the following code work to
>> actually add the new key/value pair to the new dictionary?
>>
>> innrDictCmnd = "innerDict['"+newinnrkey+"'] = newinnrval"
>> eval(innrDictCmnd)
>>
>> If not why not, and in lieu of the statements above not working, then how
>> would I do it?
>>
>> Thanks for the help.
>>
>> Henry
>>
>>
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