Env and vars are somewhat different, being dicts. The Proper (TM) way
for those would be target = request.vars.get('myoptionalvar', None).
The reason this is the Proper (TM) way is that you *have* to know when
you're handling undefined data (is that a None ? Or a '' ? Maybe 0 ?)
You can't just throw in a None in a middle of a controller and hope it
works out (often trading an IndexError for an even harder to debug
'unsupported operand type for None'. That would be the PHP way. Easy
on beginners - yes, effect on code quality - terrible. But let's wait
on further comments.On May 23, 5:42 pm, mdipierro <mdipie...@cs.depaul.edu> wrote: > yes but we do this already for request.vars and request.env > > anyway, I am not sure about myself about this. Let's here a few > comments about this can I can revert it. > > Massimo > > On May 23, 10:29 am, Alexey Nezhdanov <snak...@gmail.com> wrote: > > > On Saturday 23 May 2009 18:42:58 AchipA wrote:> Tt does break existing > > properly written python code (and is very non- > > > pythonesque). > > > +1 except for harshness. Masking exceptions is a BAD THING (TM) > > > > Think: > > > > try: target = request.args[0] > > > except: > > > response.flash = 'No target specified' > > > return > > > > do_something(target) > > > If this is an issue for people, I think they should improve their > > > python skills (learn exceptions, for arg in request.args constructs), > > > and not fight the language by framework-specific workarounds. They > > > will benefit from it much more on the long run (as they are bound to > > > have the same IndexError or KeyError problem anyway, just someplace > > > else). My 0.02c. > > > -- > > Sincerely yours > > Alexey Nezhdanov --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py Web Framework" group. To post to this group, send email to web2py@googlegroups.com To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
