Python Programs (Files Questions)

Using python 3 functions and files

1. Line Numbers; It should be able to handle IOError and ValueError exceptions.

Write a program that asks the user for the name of a file. The program should display the contents of the file with each line preceded with a line number followed by a colon. The line numbering should start at 1.

2. Random Number File Writer

Write a program that writes a series of random numbers to a file. Each random number should be in the range of 1 through 500. The application should let the user specify how many random numbers the file will hold.

3. Use the file you have created in the previous question. Write a program that calculates the average of all numbers, and reports how many numbers are there that are greater than 250 and sum of all numbers smaller than 250.