urlencode an array of values

Question

I\'m trying to urlencode an dictionary in python with urllib.urlencode. The problem is, I have to encode an array.

The result needs to be:

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Answer 1

as aws api defines its get url: params.0=foo¶ms.1=bar

however, the disadvantage is that you need to write code to encode and decode by your own, the result is: params=[foo, bar]