This Homework Tests Your Knowledge Of File Handling And Use

This Homework Tests Your Knowledge Of File Handling And Use Of Lists D This homework tests your knowledge of File Handling and use of Lists data type. Adhere to the naming conventions discussed in class for variable names, program name and function names. Use meaningful names for variables, functions etc. If there are two words in the variable, use first word lowercase and first letter of second word uppercase, e.g., firstName or underscore between 2 words, e.g., first_name. Include appropriate comments in the code. Output should be displayed similarly to the examples provided for each problem. Indent the lines of code appropriately.

Paper For Above instruction This comprehensive programming assignment encompasses three key tasks: creating a file with a range of numbers, reading specific lines from a user-specified file, and analyzing a series of user-inputted numbers stored in a list. Each task emphasizes core programming concepts such as file handling, list manipulation, input/output operations, exception handling, and basic data analysis using Python.

The first task, encapsulated in the program write_num.py , focuses on file creation. It involves opening a new file in write mode and populating it with integers from 1 to 101 using a for loop. This exercise not only demonstrates basic file writing procedures but also emphasizes proper file management and adherence to coding standards regarding variable naming conventions and code comments.

The second task, implemented in read_num.py , builds on the first by prompting the user to specify a filename. The program then attempts to open and read the first ten lines of this file, implementing robust error handling to manage potential file access issues. The solution involves the use of try/except blocks, a loop to read lines with a counter, and string methods to strip newline characters, ensuring clean output.

The third task, conducted in numanalysis.py , involves user interaction where the user inputs ten numbers. The program stores these numbers in a list,

then computes and displays various statistics: the list contents, the minimum and maximum numbers, the total sum, and the average. This task emphasizes list operations, user input validation, and data analysis techniques.

Throughout the assignment, adherence to programming best practices such as meaningful variable names, proper code indentation, and thorough commenting is stressed to ensure clarity, maintainability, and professionalism in code development.

Code Implementation write_num.py def main(): # Open the file 'num_list' in write mode with open('num_list', 'w') as file: # Write numbers from 1 to 101 into the file for number in range(1, 102): file.write(f"{number}\n") # No need to explicitly close the file when using 'with' statement if __name__ == "__main__": main() read_num.py def main(): # Declare variables line = '' counter = 1 try: # Prompt user for filename

filename = input("Enter the name of the file: ") # Open the file in read mode with open(filename, 'r') as file: # Read and display the first 10 lines of the file while counter <= 10: line = file.readline() if not line: break # End of file reached # Remove trailing newline characters print(line.rstrip()) counter += 1 except FileNotFoundError: print(f"Error: The file '{filename}' does not exist.") except IOError: print(f"Error: Could not read the file '{filename}'.") if __name__ == "__main__": main() numanalysis.py def main(): # Initialize an empty list to store user numbers number_list = [] # Loop to get 10 numbers from the user for i in range(1, 11):

while True: try: # Prompt user for a number num_input = input(f"Enter number {i} of 10: ") number = float(num_input) # Append validated number to list number_list.append(number) break except ValueError: print("Invalid input. Please enter a valid number.") # Calculate statistics low = min(number_list) high = max(number_list) total = sum(number_list) average = total / len(number_list) # Display the results print(f"\nList: {number_list}") print(f"Low: {low:.2f}") print(f"High: {high:.2f}") print(f"Total: {total:.2f}") print(f"Average: {average:.2f}") if __name__ == "__main__": main()

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