Summary

For this assignment we will read a list of cities from a file, ask the user to select two cities, then determine the

distance between them. As we all know, I hope, the earth is not flat. Therefore, the distance between two points is

not a straight line, but the Great Circle $($Orthodromic$)$ Distance. You can find some help with equation here:

D$=$f$($lat$1,$lon$1,$lat$2,$lon$2,6371\mathrm{.}09)$

Specifications

$$ Create an empty project and add files as required.

$$ You will use an n$-$tier design.

o You should have a DAL for reading the file.

o You will need to create a City class and a CitiesList class, at a minimum for the business layer.

$$ Load the given data file into the CitiesList objects.

o The presentation layer should be its own module and handle IO$.$

o The main module should only contain the main method and start the process. Total of four modules in

the project.

$$ The City class should contain the name, latitude, and longitude. It should also contain a method to calculate

the distance from it to another city, return a string of the city, other methods as needed.

$$ You will be graded on the design of your class $$ consider coding conventions, comments, with methods should

be static, dunders, etc...

$$ Ask the user for the following information:

$$ You will prompt the user for the name of city.

o NOTE: Do not assume the user will enter valid data $($for example they may not enter a city which exists

in the list$).$ In fact, DO NOT assume ANY of the input for this assignment is valid.

$$ The top $/$ bottom N

o If the user enters $5,$ then this means the $5$ closest and $5$ farthest cities. This should be any number

between $1$ and $100$ inclusive.

$$ The radius

o If the user enters $30,$ then display all the cities within the $30-$km radius. The distance should be any float

value between $1$ and $1000.$

$$ You will display the results as shown below.

$$ Do not forget the Python Docstring $($your grade will, in part, depend on the quality of these comments$)$

$$ Make sure you have all required comments, and your name is included in your code.