[Tutor] Alan G Week 10 warmup assignment help

[Alan Gauld]

On 02/04/16 10:59, Albert-Jan Roskam wrote:

>>> however now pylint is returning:
>>> task_07.py:36: [W0102(dangerous-default-value), iter_dict_funky_sum]
>>> Dangerous default value DATA (__builtin__.dict) as argument

>> I would drop the default value for the parameter.
>> ( I suspect that Python doesn't like DATA as a default value
>> because it means you cant use the function anywhere DATA is
>> not defined. But I'm not sure about that)
> 
> I thought this warning was about the use of mutable  default arguments 

Possibly so, I don't really know why the warning is there.
The "fix" is the same, remove the default value it's not
really helping here.

(if you really wanted it you could use None:

def foo(data = None):
  if not data:
     data = DATA  # use global
  ...
)

-- 
Alan G
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