Answered: Using the starter code that includes…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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this is an old reference guide question found on the internet

Using the starter code that includes two functions that convert between metric and imperial values for distance (inches <-> centimeters) and weight (pounds <-> kilograms), your job is to test these functions. You should write a main() in test_measurements.py; when we run it, we should see all of your tests, the expected result for each one, and the actual result for each one.

*** Testing inches -> cm conversions

Converting 0 inches to centimeters:
>>result = 0.00 expected = 0.00

Converting 1 inches to centimeters:
>> result = 2.53 expected =2.54

*** testing cm-> inches conversions

Converting 0 centimeters to inches:
>> result = 0.00 expected = 0.00

Converting 38 centimeters to inches:
>> result = 14.96 expected = 14.96

PYTHON STARTING CODE

INCHES_TO_CM = 2.54

POUNDS_TO_KG = 0.453592

def inches_to_cm( inches ): ''' Function -- inches_to_cm Converts inches to centimeters and returns (answers) the resulting value Parameters: inches (float) -- the original distance/height in inches Returns a float value representing the original vaule converted to centimeters ''' return abs(inches * INCHES_TO_CM) # convert negative distance to positivedef cm_to_inches( centimeters ): ''' Function -- cm_to_inches Converts centimeters to inches and returns (answers) the resulting value Parameters: centimeters (float) -- the original distance/height in centimeters Returns a float value representing the original vaule converted to inches ''' return abs(centimeters * (1 / INCHES_TO_CM))def pounds_to_kg( pounds ): ''' Function -- pounds_to_kg Converts pounds to kilograms and returns (answers) the resulting value Parameters: pounds (float) -- the original weight in pounds Returns a float value representing the original vaule converted to kilograms ''' return abs(pounds * POUNDS_TO_KG) # convert negative weight to positivedef kg_to_pounds( kg ): ''' Function -- cm_to_inches Converts kilograms to pounds and returns (answers) the resulting value Parameters: centimeters (float) -- the original weight in kilograms Returns a float value representing the original vaule converted to pounds ''' return abs(kg * (1 / POUNDS_TO_KG))

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