python. was COMMON rates (was RE: Congrads John Earl!) -- MIDRANGE-L

Hans can I ask you to explain this python code a little bit?

--------------------------------------------
# Set up the replacement variables
title = 'This is the title'
body = '<p>This is the body</p>'

# Write out the web page
print template % vars()
--------------------------------------------

What is "vars()"?  a collection of all the variables in the current
procedure?

What is "%"?  An argument seperator?

Is the "print" function able to retrieve the names of the variables and the
values also?

If this is in the ballpark, can a programmer write a similar function that
receives a collection of variables as a parm?

Does anything prevent python from running on the iSeries?

Thanks.  Python looks like it is fun, but using procs, the current RPG could
come close to your example like so:
  template = ReadSourceMemberIntoString( Srcf: SrcMbr ) ;
  AddToVarCollection( vars: 'Title': Title ) ;
  AddToVarCollection( vars: 'Body': Body ) ;
  ApplyVarsToTemplate( result, template, vars ) ;
  WriteToStdOut( result ) ;

And of course if RPG was open sourced, with IBM not losing any revenue
because it stays a part of websphere, then RPG could be extended in
experimental ways.  And the marketplace would decide if the extension is
worthwhile or not.

Steve Richter


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Hans Boldt
Sent: Friday, May 02, 2003 10:46 AM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: COMMON rates (was RE: Congrads John Earl!)

>Just to illustrate my point, here's how you
>might code the template technique in another language, Python.

>First, here's a small sample HTML template:
>--------------------------------------
<html>
<title>%(title)s</title>
<body>
<h1>%(title)s</h1>
%(body)s
</body>
</html>
--------------------------------------

Now, here's the Python code to read that template file, substitute
in some replacement values, and write out the HTML:

--------------------------------------
#!/usr/bin/env python

# Read template file
tf = file('template.text')
template = tf.read()
tf.close()

# Set up the replacement variables
title = 'This is the title'
body = '<p>This is the body</p>'

# Write out the web page
print template % vars()
--------------------------------------

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