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Convert python list to dictionary - Printable Version

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Convert python list to dictionary - akanowhere - Dec-27-2020

I need a help to convert the bellow list to a dictionary:



 list = [{'Dia': 'qua', 'Promo': 'João', 'Loja': 6697}, {'Dia': 'qui', 'Promo': 'João', 'Loja': 5599}, {'Dia': 'sex', 'Promo': 'João', 'Loja': 7437}]
The output must be:


Output:
 dict = {{'Dia': 'qua', 'Promo': 'João', 'Loja': 6697}, {'Dia': 'qui', 'Promo': 'João', 'Loja': 5599}, {'Dia': 'sex', 'Promo': 'João', 'Loja': 7437}}


RE: Convert python list to dictionary - schascheck - Dec-27-2020

Right now you have a list that is made up of 3 dictionaries.

But the output that you are asking for is a "dictionary" made up of 3 dictionaries, but python will not allow that.

A dictionary is {"key": value}. So, the best you could do is to string your 3 dictionaries together.

Please correct me if I'm wrong. I often am :)

RE: Convert python list to dictionary - Larz60+ - Dec-27-2020

Nested dictionaries are allowed and useful
eachsub dictionary does require a key, so have made d1, d2 and d3
I added display dict so that you can display contents

newdict = {
    'd1': {'Dia': 'qua', 'Promo': 'João', 'Loja': 6697}, 
    'd2': {'Dia': 'qui', 'Promo': 'João', 'Loja': 5599}, 
    'd3': {'Dia': 'sex', 'Promo': 'João', 'Loja': 7437}
}

def display_dict(dictname, level=0):
    indent = " " * (4 * level)
    for key, value in dictname.items():
        if isinstance(value, dict):
            print(f'\n{indent}{key}')
            level += 1
            display_dict(value, level)
        else:
            print(f'{indent}{key}: {value}')
        if level > 0:
            level -= 1


if __name__ == '__main__':
    display_dict(newdict)
output when run:
Output:
d1
    Dia: qua
    Promo: João
    Loja: 6697

d2
    Dia: qui
    Promo: João
    Loja: 5599

d3
    Dia: sex
    Promo: João
    Loja: 7437


RE: Convert python list to dictionary - deanhystad - Dec-27-2020

Dictionaries need key/value pairs, so you can either make up a new key, or you can use one of the keys from the dictionaries. Larz60+ created a new key. Below the 'Dia' value is used as a key for each of the sub-dictionaries.
combined_dict = {'qua':{'Promo': 'João', 'Loja': 6697},
                 'qui':{'Promo': 'João', 'Loja': 5599},
                 'sex':{'Promo': 'João', 'Loja': 7437}}
You could also use the values for 'Loja' as the key for your sub-dictionaries. You cannot use 'Promo' values as a key for sub-dictionaries because the 'Promo' values are not unique.

RE: Convert python list to dictionary - akanowhere - Dec-27-2020

Please how can I finish the topic as solved????

RE: Convert python list to dictionary - Larz60+ - Dec-27-2020

just stop posting. All threads remain so that others may benefit from them in the future.

RE: Convert python list to dictionary - Pedroski55 - Dec-27-2020 

# a list

mylist = [{'Dia': 'qua', 'Promo': 'João', 'Loja': 6697}, {'Dia': 'qui', 'Promo': 'João', 'Loja': 5599}, {'Dia': 'sex', 'Promo': 'João', 'Loja': 7437}]

# dict from list

mydict = {i:mylist[i] for i in range(len(mylist))}