euler
Module¶
This is the main module for Project Euler, it provides some highlevel functionality via a commandline application.
By starting
a new problem, its description will be downloaded into a skeleton Python module which
conforms to the API used in this project; the module will be placed at solutions/problemX.py
for problem X
. You
must provide a function solve()
which computes and returns the answer. Once you have successfully submitted the
correct answer to the Project Euler website you should save that answer into the
expected_answer
member. This will be used to check the ongoing correctness of your solution.
While developing and testing your solution, you’ll want to run your code. To compute the answer to problem X
using
your solution you would exercise the solve
function.
Note
both start
and solve
commands take an optional problem identifier; if this is not provided, you will
be prompted for one on the standard input.
Finally, you may want to [re]validate all solutions (to check you haven’t broken anything) via the validate
function.
Program Synopsis¶
usage: euler.py [h] {start,solve,validate} ...
Positional Arguments¶
command  Possible choices: start, solve, validate 
Subcommands:¶
start¶
Start a new Project Euler problem
euler.py start [h] [n]
Positional Arguments¶
n  problem number (default: prompt user for input) 
euler
– Command Line Interface¶

euler.
main
()¶ Main program entry point

euler.
solve_problem
(selection)¶ Dynamically load and run solution for a selected Project Euler problem

euler.
start_problem
(selection)¶ Create a template solution Python file for a selected Project Euler problem
The Python file will be populated by the problem description and boilerplate needed by this project.