multiple parameters in if statement...

[Kun]

mensanator at aol.com wrote:
> Kun wrote:
>> I am trying to make an if-statement that will not do anything and print
>> 'nothing entered' if there is nothing entered in a form.  I have the
>> following code that does that, however, now even if I enter something
> 
> Yes, but did you enter everything?
> 
>> into the form, the code still outputs 'nothing entered'.
> 
> The logic doesn't imply "nothing", it implies "not everything".
> The else clause will execute if ANY item is not enetered.
> 
>> This violates
>> the if statement and I am wondering what I did wrong.
>>
>>      if form.has_key("delete_id") and form["delete_id"].value != "" and
>> form.has_key("delete_date") and form["delete_date"].value != "" and
>> form.has_key("delete_purchasetype") and
>> form["delete_purchasetype"].value != "" and form.has_key("delete_price")
>> and form["delete_price"].value != "" and form.has_key("delete_comment")
>> and form["delete_comment"].value != "":
>>          delete_id=form['delete_id'].value
>>          delete_date=form['delete_date'].value
>>          delete_purchasetype=form['delete_purchasetype'].value
>>          delete_price=form['delete_price'].value
>>          delete_comment=form['delete_comment'].value
>>      else:
>>          print "ERROR: Nothing entered!"
>>          raise Exception
> 
How do I make this so that it only prints 'nothing entered' when none of 
the fields are entered?