Question

Please write in python

Use modular design to write a program that asks the user to enter his or her weight and the name of a planet. The program then outputs how much the user would weigh on that planet. The following table gives the factor by which the weight must be multiplied for each planet.

PLANET	CONVERSION FACTOR
Mercury	0.4155
Venus	0.8975
Earth	1.0000
Moon	0.1660
Mars	0.3507
Jupiter	2.5374
Saturn	1.0677
Uranus	0.8947
Neptune	1.1794
Pluto	0.0899

The Program must meet the following requirements:

1. The program must have a menu
2. The program should output an error message if the user doesn’t type a correct planet name. The prompt and the error message should make it clear to the user how a planet name must be entered.
3. The output should be labeled clearly and formatted neatly.
4. The output must be display with 2 decimal points.
5. Use modular design
6. Use proper documentation

Answer 1

Short Summary:

• Provided the source code and sample output as per the requirements.

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Source Code:

# function to display the planets name
def userMenu():
print("Mercury \nVenus \nEarth\nMoon\nMars\nJupiter\nSaturn\nUranus\nNeptune\nPluto\n")
  
# get user input
def userInput():
userMenu();
userWeight = float(input("Enter your weight: "));
planet = input("Enter name of the planet: ");
calculateWeight(userWeight,planet)

# method to calculate the Weight on the specific planet
def calculateWeight(weight,planetName):
# based on the planet display the weight
if planetName == "Mercury" :
print("Your weight on Mercury is {:.2f}".format(weight*0.4155));
elif planetName== "Venus" :
print("Your weight on Venus is {:.2f}".format(weight*0.8975));
elif planetName == "Earth":
print("Your weight on Earth is {:.2f}".format(weight*1.0000));
elif(planetName== "Moon"):
print("Your weight on Moon is {:.2f}".format(weight*0.1660));
elif(planetName== "Mars"):
print("Your weight on Mars is {:.2f}".format(weight*0.3507));
elif(planetName== "Jupiter"):
print("Your weight on Jupiter is {:.2f}".format(weight*2.5374));
elif(planetName== "Saturn"):
print("Your weight on Saturn is {:.2f}".format(weight*1.0677));
elif(planetName== "Uranus"):
print("Your weight on Uranus is {:.2f}".format(weight*0.8947));
elif(planetName== "Neptune"):
print("Your weight on Neptune is {:.2f}".format(weight*1.1794));
elif(planetName== "Pluto"):
print("Your weight on Pluto is {:.2f}".format(weight*0.0899));
else:
# if the planet enterd by the user is not a valid one display error message
print("Planet Name entered is WRONG !!!. Please try again by giving the FULL NAME of the PLANET");

# main method calls the user input method
def main():
userInput()

# starting point of the program
if __name__ == "__main__":
main()

Refer the following screenshots for code indentation:

Sample Run:

SAMPLE OUTPUT 2:

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