multiple parameters in if statement

[John Machin]

On 16/04/2006 1:43 PM, John Zenger wrote:
> 
> The other thing I'd recommend is stick that long list of fields in a 
> list, and then do operations on that list:
> 
> fields = ['delete_id', 'delete_date', 'delete_purchasetype', 
> 'delete_price', 'delete_comment']
> 
> then to see if all those fields are empty:
> 
> everything = ""
> for field in fields:
>     everything += form.get(field,"")

Or everything = "".join(form.get(field, "") for field in fields)

Somewhat labour-intensive. It appears from the OP's description that no 
other entries can exist in the dictionary. If this is so, then:

everything = "".join(form.values())

but what the user sees on screen isn't necessarily what you get, so:

everything = "".join(form.values()).strip()

> if everything == "":
>     print "Absolutely nothing entered!"
>