在Python 3中动态传递函数中的参数

Question

Does python support dynamic argument passing when I call a function ?

  import itertools.product
  l = [1,2,3,95,5]
  for i in range(5):
      for n in itertools.product(l,l):
         #calculations that
         #reduce set size

I want through the iterations of i the product to be:

i=1: product(l,l)

i=2: product(l,l,l)

i=3: product(l,l,l,l)

...

If I can recall correctly the only language I know that supports that kind of functionality is PHP.

Answer 1

itertools.product accepts an optional keyword argument repeat :

So, you can do:

for n in itertools.product(l, repeat=i+1):
    ...

---

Alternatively, to dynamically pass argument, you can use *args (See Unpacking argument lists ):

for n in itertools.product(*([l] * (i+1))):
    ...