ferjflores / Code_Challenge_Waste_Not

Code Challenge Project Waste Not

Problem 1

Timer script in timer.py

Timer Context Manager

This script allows the user measure the running time of the specified code

Usage:

    from timer import Timer

    with Timer():
        time.sleep(10)

This will output to stdout: '10 second(s)'

Passing time measure data to a dict:

A dict can be passed as an argument to the class to store all the data(including the raw time in seconds) from the measure

data = {}
with Timer(data=data):
    time.sleep(100)

Now the data dict will contain:

{'elapsed': 100, 'elapsed_formatted': 2, 'unit': 'minute(s)'}

elapsed: Is the time in seconds.

elapsed_formatted: Is the time converted to the corresponding unit.

unit: Is the unit of time (seconds, minutes, hours).

Append message to output

with Timer('Custom Message to append'):
        time.sleep(10)

This will output to stdout: 'Custom Message to append - 10 second(s)'

Choosing the time format:

There are multiple time formats to choose for example you can get the output time in the format %H:%M:%S:%f

data = {}
with Timer(data=data, time_format=4):
    time.sleep(3665)

data['elapsed_formatted'] will be: '01:01:05:0.000'

To run tests

python3 -m unittest problem_1/timer.py

Problem 2

Open the file problem_2/index.html in a browser

Problem 3

Entity relationship diagram

problem_3/ERD.png

Database Schema and example data

problem_3/db.sql

Product list by customer queries

problem_3/product_list.sql