使用正则表达式比较元组？ 蟒蛇

Question

I have a dictionary where the keys are tuples of n elements. Say I want to find only tuples whose n-1 elements match, and the other one can be of any value. For example, I want the first 6th elements to be set to 100, and the 7th can be anything and I have these tuples as keys:

 1. (100,100,100,100,100,45,54)
 2. (100,100,100,100,100,100,54)
 3. (100,100,100,100,100,100,54)
 4. (100,100,100,100,100,100,54)
 5. (100,100,100,100,100,23,54)

Then I only need key 2-4, as the first and the fifth hold a value different than 100 in the 6th element. Of course I can compare each element individually when going over all keys, but I am thinking maybe there's a better way. Any ideas of how I can do it in Python?

Thanks

Answer 1

您可以进行列表理解：

matched = [x for x in tuples if x[:6] == (100,100,100,100,100,100)]

Answer 2

这样的事情应该起作用：

matched = [x for x in dict.keys if len(set(x[:6])) == 1]