# Python dictionary with keys having multiple inputs

Prerequisite : Python-Dictionary.

How to create a dictionary where a key is formed using inputs?

Let us consider an example where have an equation for three input variables, x, y and z. We want to store values of equation for different input triplets.

Example 1:

 `# Python code to demonstrate a dictionary ` `# with multiple inputs in a key. ` `import` `random as rn ` ` `  `# creating an empty dictionary ` `dict` `=` `{} ` ` `  `# Insert first triplet in dictionary ` `x, y, z ``=` `10``, ``20``, ``30` `dict``[x, y, z] ``=` `x ``+` `y ``-` `z; ` ` `  `# Insert second triplet in dictionary ` `x, y, z ``=` `5``, ``2``, ``4` `dict``[x, y, z] ``=` `x ``+` `y ``-` `z; ` ` `  `# print the dictionary ` `print``(``dict``) `

Let us consider a dictionary where longitude and latitude are the keys and the place to which they belong to is the value.

 `# dictionary containing longitude and latitude of places ` `places ``=` `{(``"19.07'53.2"``, ``"72.54'51.0"``):``"Mumbai"``, \ ` `          ``(``"28.33'34.1"``, ``"77.06'16.6"``):``"Delhi"``} ` ` `  `print``(places) ` `print``(``'\n'``) ` ` `  `# Traversing dictionary with multi-keys and crearing ` `# different lists from it ` `lat ``=` `[] ` `long` `=` `[] ` `plc ``=` `[] ` `for` `i ``in` `places: ` `    ``lat.append(i[``0``]) ` `    ``long``.append(i[``1``]) ` `    ``plc.append(places[i[``0``], i[``1``]]) ` ` `  `print``(lat) ` `print``(``long``) ` `print``(plc) `

Now that the keys(latitude, longitude) and values(place) are stored in a list, we can access it easily.

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