homepage

> try:
> mapping = {}
> mapping.max_collisions = 100
> mapping.update(source)
> except CollisionLimitError:
> return 'no thank you'
May be use a more general solution?
try:
 with run_with_timeout(timeout=100, timer=collisions_count):
 mapping = insert_untrusted_data(source)
except TimeoutError:
 return 'no thank you'
(You can can use different measurement for timeout: user time, real time, ticks 
count, collisions count, or even a user defined timer).