从元组列表中搜索元组索引

Question

I have a list of tuples as follows: 我有一个元组列表如下：

tupleList = [('a','b'), ('c','d'), ('a','b'), ('a','b'), ('e','f')]

I want to find index of ('a','b') in tupleList. 我想在tupleList中找到('a','b')的索引。

I am trying the following: 我正在尝试以下方法：

idx = np.where(tupleList == ('a','b'))

but it gives an empty array. 但它给出了一个空数组。

Desired output would be 期望的输出将是

idx = [0, 2, 3]

Answer 1

[i for i, t in enumerate(tupleList) if t == ('a', 'b')]

yields 产量

[0, 2, 3]