在Python中将列表转换为dict

Question

How can I convert a list

my_list = ["a", "b", "c"]

into a dictionary

my_dict = {
    1: "a",
    2: "b",
    3: "c"
}

The keys should just be the indexes + 1 as in my example.

Answer 1

A simple solution is:

dict(enumerate(my_list, 1))

For example:

>>> dict(enumerate(["a", "b", "c"], 1))
{1: 'a', 2: 'b', 3: 'c'}

Answer 2

Go for enumerate .

The enumerate() function adds a counter to an iterable.

Simple example:

for i, v in enumerate(my_list):
    print i, v

By default, enumerate() starts counting at 0 but if you give it a second integer argument, it'll start from that number instead:

for i, v in enumerate(my_list, start=1):
    print i, v

For your case:

>>> dict(enumerate(your_list, start=1))
{1: 'your_list_value1', 2: 'your_list_value2'}