How to create new dictionary from multiple dictionaries when values from one dictionary are keys in-CodePudding

I have 3 dictionaries from which I want to construct a new dictionary.

dict1 = {'k1' : ('v1', 'v2'), 'k2' : ('v3', 'v4'), 'k3' : ('v5', 'v6')}

Each first value in the tuples in dict1 is a key in dict2.

dict2 = {'v1' : ('x1', 'y1', 'z1'), 'v3' : ('x3', 'y3', 'z3'), 'v5': ('x5', 'y5', 'z5'),}

Each second value in the tuples in dict1 is a key in dict3.

dict3 = {'v2' : ('x2', 'y2', 'z2'), 'v4' : ('x4', 'y4', 'z4'), 'v6' : ('x6', 'y6', 'z6')}

The new dictionary has:

new defined keys a formatted string like ‘q{i}’.
the values of the keys from dict2 and dict3 (which where in the same tuple in dict1), stored together in a tuple.

dict4 = { 'q1' : ('x1', 'y1', 'z1', 'x2', 'y2', 'z2'), 'q2' : ('x3', 'y3', 'z3', 'x4', 'y4', 'z4'), 'q3' : ('x5', 'y5', 'z5', 'x6', 'y6', 'z6')}

After trying to implement the offered solution, I became aware that my discription of the problem needed more information.

The variables k1, k2,k3,…… are formatted strings in the form of k{j}.

The variables v1, V2, v3, …… are also formatted strings of the form v{a}.

As mentioned earlier the same is valid for the variable q1, q2, q3, … which have the form q{i}.

The variables x, y, z are all floats in the dictionaries.

CodePudding user response：

You can do it in one line:

output = {key: dict2[v1]   dict3[v2] for key, (v1, v2) in dict1.items()}

Since we don't know what are the new keys, I used the original dict1 keys as keys for the new dict4.

CodePudding user response：

Building on @Bharel's excellent answer, you can wrap dict1.values() in enumerate to be able to get the desired key names:

dict4 = {f'q{i}': dict2[v1]   dict3[v2] for i, (v1, v2) in enumerate(dict1.values(), 1)}

Output:

{'q1': ('x1', 'y1', 'z1', 'x2', 'y2', 'z2'),
 'q2': ('x3', 'y3', 'z3', 'x4', 'y4', 'z4'),
 'q3': ('x5', 'y5', 'z5', 'x6', 'y6', 'z6')}