Here's what I get with your example:
------------
In [1]: list=[1,2,3,54]
In [2]: for item in list:
...: print item
...: else:
...: print "no items"
...:
1
2
3
54
no items
---------------
Which I don' t think is what you want.
If you want the first item, then try this:
if len(list)>0:
for item in list:
print item
else:
print "no items"
or
if len(list)>0:
print list[0]
else:
print "no items"
For the template language (basically python, but no indent hints), you
would add 'pass' anywhere unindenting is intended / would be
ambiguous, e.g at the end of either of these snippets (would also be
harmless to put at end of any indentation block, but not needed).
Does that help?
I used ipython ( http://ipython.scipy.org); you can also
interactively test your apps from a shell environment in web2py (which
will pre-load, and if you have ipython, take you into the ipython
environment) using this form of invocation:
python web2py -S myapp
Hope this was helpful.
Regards,
Yarko
On Oct 11, 4:36 pm, billf <[EMAIL PROTECTED]> wrote:
> In this case I wanted the following behaviour:
>
> If there is at least one error message then display the first error
> message else display the page message.
>
> I just tested the template code without the {{break}} and the {{pass}}
> at the end and it passes the syntax check - I just get all the error
> messages. If no-one has any solutions I suppose I can get around it
> with if len(form.errors)>0 or similar.
>
> Bill
>
> On Oct 11, 10:09 pm, "Daniel Contag" <[EMAIL PROTECTED]> wrote:
>
> > What is the "break" for?
>
> > Daniel
>
> > On Sat, Oct 11, 2008 at 22:50, billf <[EMAIL PROTECTED]> wrote:
>
> > > Adding a {{pass}} at the end doesn't make any difference.
>
> > > On Oct 11, 9:45 pm, billf <[EMAIL PROTECTED]> wrote:
> > >> New to python, I believe that the following is valid syntax:
>
> > >> for item in list:
> > >> print item
> > >> else:
> > >> print 'no items in list'
>
> > >> When I put the following in a template I get a SyntaxError: invalid
> > >> syntax error with "else:" highlighted:
>
> > >> {{for key,value in form.errors.items():}}
> > >> <span class="error_message">{{=key}} {{=value}}</span>
> > >> {{break}}
> > >> {{else:}}
> > >> <span class="page_message">{{=message}}</span>
>
> > >> What am I missing/
>
> > >> Bill
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