[Tutor] How to parse InputFile to generate OutputFile?

[Alan Gauld]

"Kamisetty, Rajendra" <rkamisetty at paypal.com> wrote

> I am new to Python and need your help

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> I need to generate an output text file based on the input text file 
> data

>  Input.txt contents:
> ('844 - Open File Message',
>  '011 - System Trace Audit Number: 823301',
>  '012 - Local Time: 033543',
>  '013 - Local Date: 0821',
>  '024 - Function
>  Code: 861')
> etc/...

> Output.txt contents:
> ( which has fixed length format of 142 bytes each line.)
> 11  00000000000030004                050908024536000674000000
> 13
>
> 23  0000000000003000400828000113105470509080245364247939
> 000000070824800000005090805008585147778978978050908050908

I'm strugglibng to see the correlation here. The second line does not
look like the same length as the first  - unless the first is full of 
spaces?

> 1. Parse the input file to get the value (bold) appears next to 
> string
> "System Trace Audit Number2".
> 2. Replace the value (bold) with database equivalent eg.
> 369325=092222257UXT
> 3. Generate the output file as below where everything is constant 
> except
> bold text which is databse equivalent of parsed value from input 
> file.

Tell us which step puzzles you and why.
We wilol try to help. At the moment we can't tell what exactly you
need help with?

-- 
Alan Gauld
Author of the Learn to Program web site
http://www.freenetpages.co.uk/hp/alan.gauld