Alan Harris-Reid wrote:
> Hi,
>
> During my Python (3.1) programming I often find myself having to repeat
> code such as...
>
> class1.attr1 = 1
> class1.attr2 = 2
> class1.attr3 = 3
> class1.attr4 = 4
> etc.
>
> Is there any way to achieve the same result without having to repeat the
> class1 prefix? Before Python my previous main language was Visual
> Foxpro, which had the syntax...
>
> with class1
> .attr1 = 1
> .attr2 = 2
> .attr3 = 3
> .attr4 = 4
> etc.
> endwith
>
> Is there any equivalent to this in Python?
No. You could write a helper function
>>> def update(obj, **kw):
... for k, v in kw.items():
... setattr(obj, k, v)
...
and then use keyword arguments:
>>> class A: pass
...
>>> a = A()
>>> update(a, foo=42, bar="yadda")
>>> a.foo, a.bar
(42, 'yadda')
>>>
But if you are doing that a lot and if the attributes are as uniform as
their names suggest you should rather use a Python dict than a custom class.
>>> d = {}
>>> d.update(foo=42, bar="whatever")
>>> d
{'foo': 42, 'bar': 'whatever'}
>>> d["bar"]
'whatever'
Peter
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