[Tutor] R?p. : Sorting Data in Databases
Albert Sweigart
asweigart at gmail.com
Tue Nov 24 03:54:41 CET 2009
Ken,
You should probably use the sorting functionality that your DBMS
provides. However, if you have a list of strings that end with a new
line and start with an apostrophe, you can use list comprehensions to
remove them:
newlist = [x[1:-1] for x in newlist]
You can look at the following links to find out more about list
comprehensions here:
http://www.secnetix.de/olli/Python/list_comprehensions.hawk
http://www.network-theory.co.uk/docs/pytut/ListComprehensions.html
-Al
You should check out my free beginner's Python book here:
http://inventwithpython.com
> Actually, I was fooling around with that today by adding to the list
> from the file and then sort. I was using the following simplify method:
>
> newlist = []
>
> newlist = [
> 456, 54, 8, 158, 878
> ]
> (above data read from file)
>
> newlist.sort()
>
> print newlist
> [8, 54, 158, 456, 878]
>
> (still working adding to new file]
>
> The actual sorted list has, as I recall, an apostrophe at the beginning
> and an \n at the end of every number I had. I will be working on that.
>
> Thanks for your suggestion.
>
> Ken
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