Using String for new List name

[Peter Otten]

Hendrik van Rooyen wrote:

> On Monday, 28 September 2009 18:54:09 Scott wrote:
>> I am new to Python but I have studied hard and written a fairly big
>> (to me) script/program. I have solved all of my problems by Googling
>> but this one has got me stumped.
>>
>> I want to check a string for a substring and if it exists I want to
>> create a new, empty list using that substring as the name of the list.
>> For example:
>>
>> Let's say file1 has line1 through line100 as the first word in each
>> line.
>>
>> for X in open("file1"):
>>     Do a test.
>>     If true:
>>         Y = re.split(" ", X)
>>         Z = Y[0]          # This is a string, maybe it is "Line42"
>>         Z = []              # This doesn't work, I want a new, empty
>> list created called Line42 not Z.
>>
>> Is there any way to do this?
> 
> Yes
> 
> Look at exec and eval

Look. But don't touch ;)