CODEWITHSUNDEEP
python
user422100
user422100

Reputation: 2179

how join list tuple and dict into a dict?

how join list tuple and dict into a dict?

['f','b','c','d'] (1,2,3) and {'a':'10'}
d excluded for list be compatible with the tuple

output {'f':'1','b':'2','c':'3','a':'10'}

Upvotes: 5

Views: 5229

Answers (7)

AXO
AXO

Reputation: 9096

>>> l = ['a','b','c','d']
>>> t = (1,2,3)
>>> d = {'a':'10'}
>>> t = map(str, t)  # the OP has requested str values, let's do this first

If you are OK with mutating the original dict, then you can just do this:

>>> d.update(zip(l, t))

or in Python 3.9+ (PEP 584):

>>> d |= zip(l, t)

But if you need to keep the original d intact:

>>> new_d = dict(zip(l, t))
>>> new_d |= d

Upvotes: 0

snakile
snakile

Reputation: 54571

dict(zip(a_list, a_tuple)).update(a_dictionary)

when a_list is your list, a_tuple is your tuple and a_dictionary is your dictionary.

EDIT: If you really wanted to turn the numbers in you tuple into strings than first do:

new_tuple = tuple((str(i) for i in a_tuple))

and pass new_tuple to the zip function.

Upvotes: 4

John La Rooy
John La Rooy

Reputation: 304483

Since noone has given an answer that converts the tuple items to str yet

>>> L=['f','b','c','d']
>>> T=(1,2,3)
>>> D={'a':'10'}
>>> dict(zip(L,map(str,T)),**D)
{'a': '10', 'c': '3', 'b': '2', 'f': '1'}

Upvotes: 0

Tony Veijalainen
Tony Veijalainen

Reputation: 5565

Something like this?

>>> dict({'a':'10'}.items() + (zip(['f','b','c','d'],('1','2','3'))))
{'a': '10', 'c': '3', 'b': '2', 'f': '1'}

Upvotes: 0

Eike
Eike

Reputation: 2223

The keys in a dictionary must be unique, so this part: {'a':'1','a':'10'} is impossible.

Here is code for the rest:

l = ['a','b','c','d']
t = (1,2,3)

d = {}
for key, value in zip(l, t):
    d[key] = value

Upvotes: 0

Jochen Ritzel
Jochen Ritzel

Reputation: 107786

You can make a dict from keys and values like so:

keys = ['a','b','c','d']
values = (1,2,3)
result = dict(zip(keys, values)) # {'a': 1, 'c': 3, 'b': 2}

Then you can update it with another dict

result.update({ 'f' : 5 })
print result # {'a': 1, 'c': 3, 'b': 2, 'f': 5}

Upvotes: 8

pmalmsten
pmalmsten

Reputation: 426

This will accomplish the first part of your question:

dict(zip(['a','b','c','d'], (1,2,3)))

However, the second part of your question would require a second definition of 'a', which the dictionary type does not allow. However, you can always set additional keys manually:

>>> d = {}
>>> d['e'] = 10
>>> d
{'e':10}

Upvotes: 1

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