cgi Module

[Erik Max Francis]

JS wrote:

> I have a question about the cgi module:
> 
> I would like to write a robust cgi programm which checks all the
> parameters.
> 
> Possible calls are:
> 
> 1.) http://www.example.com/cgi-bin/test.py
> 2.) http://www.example.com/cgi-bin/test.py?param
> 3.) http://www.example.com/cgi-bin/test.py?param=
> 4.) http://www.example.com/cgi-bin/test.py?param=xyz
> 5.) param=file (POST)
> 
> form = cgi.FieldStorage() gives me in cases 1+2+3 nothing?

By default, cgi.FieldStorage removes keys with blank values.  If you
want them back, use cgi.FieldStorage(keep_blank_values=True)

> Shouldn't case 2 be param==None
> and case 3 param=="" ?

CGI makes no such distinction, so the best answer is probably no.

-- 
 Erik Max Francis / max at alcyone.com / http://www.alcyone.com/max/
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