Algorithm : The following algorithm is used to delete a record from file containing the student name of “John Perz”. Import a package named “os” to use remove and rename functions for files. Define “main()” function, Declare a variable named “found” and initialize it to be “False”. Open an input file named “students.txt” that is available on disk using “open()” function with “r” mode and initialize it into the “fileObject”. Open an output file named “temp.txt” using “open()” function with “w” mode and initialize it into the “temp_file”. Define a “while” loop to check the file until the value of “name” will be empty. Read the line from file using “readline()” method and store the score value into “score”. Strip the new line from the value of “name” variable. Using “if...else” condition check the name of “John Perz” is in file or not. If the name not presented in file copy all contents into temporary file. If the name presented in file and assign the value of “found” will be “True”. Read next line from file using “readline()” method. Close the file “students.txt” with “fileObject”. Close the file “temp.txt” with “temp_file”. Remove “students.txt” using “os.remove()” method. Rename “temp.txt” as “students.txt” using “os.rename()” method. Using “if...else” condition display the intimation message on the screen. Call the “main()” method.

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Chapter 10, Problem 7AW

Program Plan Intro

Algorithm:

The following algorithm is used to delete a record from file containing the student name of “John Perz”.

Import a package named “os” to use remove and rename functions for files.

Define “main()” function,

Declare a variable named “found” and initialize it to be “False”.

Open an input file named “students.txt” that is available on disk using “open()” function with “r” mode and initialize it into the “fileObject”.

Open an output file named “temp.txt” using “open()” function with “w” mode and initialize it into the “temp_file”.

Define a “while” loop to check the file until the value of “name” will be empty.

Read the line from file using “readline()” method and store the score value into “score”.

Strip the new line from the value of “name” variable.

Using “if...else” condition check the name of “John Perz” is in file or not.

If the name not presented in file copy all contents into temporary file.

If the name presented in file and assign the value of “found” will be “True”.

Read next line from file using “readline()” method.

Close the file “students.txt” with “fileObject”.

Close the file “temp.txt” with “temp_file”.

Remove “students.txt” using “os.remove()” method.

Rename “temp.txt” as “students.txt” using “os.rename()” method.

Using “if...else” condition display the intimation message on the screen.

Call the “main()” method.

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