os.path.join and lists
Andrew Dalke
dalke at dalkescientific.com
Wed Oct 17 21:29:28 EDT 2001
Uwe Schmitt:
>hi, whats the meaning of "*baz" ?? i've never seen this before....
It's new starting with Python 2.0
Older Pythons let you do
def f(*args, **kwargs):
print args, kwargs
>>> f(1, "this", x = 1.0, y = 9)
(1, 'this') {'x': 1.0, 'y': 9}
But there was no easy way to do the opposite.
args = (1, 'this')
kwargs = {'x": 1.0, 'y': 9}
apply(f, args, kwargs)
With Python 2.0, this is simplified to
f(*args, **kwargs)
Eg:
>>> def g(x, y):
... print x + y
...
>>> g(**{"x": 8, "y": -5})
3
>>>
Andrew
dalke at dalkescientific.com
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