Given three dictionaries, associated with the variables, canadian_capitals, mexican_capitals, and us_capitals, that map provinces or states to their respective capitals, create a new dictionary that combines these three dictionaries, and associate it with a variable, nafta_capitals.

python 3

The Python code to combine the three dictionaries are is given as follows:

Explanation:

Line 1 - 14 :

Create three Python dictionaries and name them as canadian_capitals, mexican_capital and us_capitals. Please note a Python dictionaries should be enclosed in curly braces { }.  

We just define two samples of relevant keys (cash and asset) in each of the dictionaries. Python dictionary can map a key to a value.

Since we are not given any capital values from the question,  a dummy string "SOME VALUES" is tentatively set as the value for each of the keys.

In practice, we should replace those dummy strings with the real values of capital. The values can be a number, a string, a list and even a nested dictionary.

Line 16 - 20 :

Create one more Python dictionary and name it as nafta_capital.

Since our aim is to combine the three previous dictionaries (canadian_capitals, mexican_capital and us_capitals) and associate it with nafta_capital, we can define three different keys (canadian, mexican and us) in our dictionary nafta_capital.

As mentioned, a value associated with a key can be a nested dictionary. Hence, we just map canadian_capitals, mexican_capital and us_capitals as the value of the keys (canadian, mexican and us) in dictionary nafta_capital, respectively,

By doing so, we have managed to combine three target dictionaries (canadian_capitals, mexican_capital and us_capitals ) into a single dictionary, nafta_capital.

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