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 But also look at using the string as a key in a dict. - Hendrik -- http://mail.python.org/mailman/listinfo/python-list