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Create A Program to Calculate Food Density in The Python Assignment Solution

June 29, 2024
Dr. Matthew Hernandez
Dr. Matthew
🇨🇭 Switzerland
Python
Dr. Matthew Hernandez, an esteemed Computer Science researcher, obtained his PhD from ETH Zurich, Switzerland. With 6 years of experience under his belt, he has successfully completed over 400 Python assignments, demonstrating his proficiency and commitment to excellence.
Key Topics
  • Instructions
    • Objective
  • Requirements and Specifications
Tip of the day
Use clear and meaningful flowchart symbols to represent logic accurately. Start with a simple plan, and break down the problem into smaller steps. Always test with sample inputs to ensure each path works as expected. Keep loops and conditions straightforward for better readability and easier debugging.
News
In May 2025, PyFCG debuted—an open-source Python library for Fluid Construction Grammar, empowering students to explore language processing and agent-based communication within their Python projects

Instructions

Objective

Write a python assignment program to calculate food density.

Requirements and Specifications

Given a text file of data about fruit with three columns of data: mass (float), volume (float) and type (string, e.g., "apple" or “orange”). Read in the data and calculate the average density of the apples and oranges.

Source Code

def read_data(filename): f = open(filename, 'r') data = [] lines = f.read().splitlines()[1:] for line in lines: parts = line.split(',') data.append([parts[0], float(parts[1]), float(parts[2])]) f.close() return data def main(): total_volume = {'apple': 0.0, 'orange': 0.0} total_mass = {'apple': 0.0, 'orange': 0.0} for rec in read_data('fruit.csv'): if rec[0] in total_mass: total_mass[rec[0]] += rec[1] total_volume[rec[0]] += rec[2] print('Apple density:', (total_mass['apple']/total_volume['apple'])) print('Orange density:', (total_mass['orange']/total_volume['orange'])) if __name__ == '__main__': main()

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