On 8/1/07, beginner <[EMAIL PROTECTED]> wrote: > On Aug 1, 11:31 am, "Chris Mellon" <[EMAIL PROTECTED]> wrote: > > On 8/1/07, beginner <[EMAIL PROTECTED]> wrote: > > > > > Hi, > > > > > In order to print out the contents of a list, sometimes I have to use > > > very awkward constructions. For example, I have to convert the > > > datetime.datetime type to string first, construct a new list, and then > > > send it to print. The following is an example. > > > > > x=(e[0].strftime("%Y-%m-%d"), e[1].strftime("%Y-%m-%d"))+e[2:] > > > print >>f, "%s\t%s\t%d\t%f\t%f\t%f\t%d" % x > > > > > e is a tuple. x is my new tuple. > > > > > Does anyone know better ways of handling this? > > > > You seem to be doing quite complicated things with your magical e > > tuple. Do you have some specific aversion to classes? > > e is not complicated. It is a record that have 7 fields. In my program > a function outputs a list of tuples, each is of type e, and now I just > need to send them to a text file. > > I have no problem using classes and I do use them everywhere. But > using classes does not solve my problem here. I will probably find > myself doing: > > print >>f, "%s\t%s\t%d\t%f\t%f\t%f\t%d" % (x.field1..strftime("%Y-%m- > %d"), x.field2..strftime("%Y-%m-%d"), x.field3, x.field4, x.field5, > x.field.6, x.field7) > > This is also tedious and error-prone. >
If you ever need to write this more than once you're doing it wrong. I'm not sure what's "tedious and error prone" about specifying the format of your data file. -- http://mail.python.org/mailman/listinfo/python-list