Converting list to dict in Python

Question

How to convert a list

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

to the dictionary

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

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

+3

Jamgreen Apr 25. 15 at 6:57

2 answers

JuniorCompressor · Answer 1 · 2015-04-25T06:58:57+0000

A simple solution:

dict(enumerate(my_list, 1))

For example:

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

no coder · Answer 2 · 2015-04-25T07:50:10+0000

The function enumerate()

adds a counter to the iterable.

Simple example:

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

By default, enumerate()

it starts counting from 0

, but if you give it a second integer argument, it will start with this number:

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

In your case:

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