how to merge 2 lists in a specific way using python

Question

I am learning python,

I am trying to merge keys['One', 'Two', 'Three'] and values [1, 2, 3] so I can get

a form of ==>: {'One': 1, 'Two': 2, 'Three': 3}

but it's not working with me in the below code.

Plus what is the difference if it was a form of ==>: ['One': 1, 'Two': 2, 'Three': 3] ?

please post the working code and explain how it works, try to make it works with long sets to.

keys = ['One', 'Two', 'Three']
values = [1, 2, 3]

after=values.join(keys)

print(after)

`['One': 1, 'Two': 2, 'Three': 3]` What is this supposed to be? Do you want a `dict` maybe? — rdas, Apr 29 '20 at 17:23
Does this answer your question? [Convert two lists into a dictionary](https://stackoverflow.com/questions/209840/convert-two-lists-into-a-dictionary) — faressalem, Apr 29 '20 at 17:25

score 1 · Answer 1 · answered Apr 29 '20 at 17:24

For sets:

keys = ['One', 'Two', 'Three']
values = [1, 2, 3]
after = set(zip(keys, values))
print(after)

Result: {('One', 1), ('Three', 3), ('Two', 2)}

For dicts:

keys = ['One', 'Two', 'Three']
values = [1, 2, 3]
after = dict(zip(keys, values))
print(after)

Result: {'One': 1, 'Two': 2, 'Three': 3}

Using the zip function you can combine two lists and set one list as the key and another list as your values as you seem to want to do.

score 1 · Answer 2 · answered Apr 29 '20 at 17:39

1

[ 'one' : 1, 'two' : 2 ] this isn’t proper python syntax, if you want a list of key-value pairs, you need a list of tuples, like this [('one',1), ('two',2)].

answered Apr 29 '20 at 17:39

faressalem

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how to merge 2 lists in a specific way using python

2 Answers2