Re: [Tutor] Looking at a String as a Struct?

Wayne Watson Thu, 11 Sep 2008 06:58:59 -0700

Title: Signature.html

True enough, but that gets messy. I'd have to keep them perhaps as global variables or pass then around a lot from function to function as a collection. I see WW posted above you about dictionaries. Maybe that's the way to do it. I'll look into it.

Kent Johnson wrote:

On Thu, Sep 11, 2008 at 6:58 AM, Wayne Watson
<[EMAIL PROTECTED]> wrote:

Is it possible in Python to look at a string as a "struct". I don't think a
struct exists in python. Actually, is there something analogous to a record.
In the case of strings, suppose I have string that is composed of
sub-strings like, first_name, last-name, date_of birth, which consists of
month, day, and year, and finally SSN, street_address, state, city, and
zip_code. I'd like to access these fields directly instead of lastname =
record[38:55]. What if fields are not just strings, but some numeric values?


For numeric fields, just convert as needed:
quantity = int(record[55:60])
price = float(record[60::70])


If the numbers are binary, rather than ascii, see the struct module.

Kent

           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)

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