Write a command(s) to write the following lines to the text file named hello.txt. Assume that the file is opened in append mode. “Welcome my class” “It is a fun place” “You will learn and play”
The commands to write the given lines to hello.txt in append mode are:
python fileobject = open("hello.txt", "a") fileobject.write("Welcome my class\n") fileobject.write("It is a fun place\n") fileobject.write("You will learn and play\n") fileobject.close()
The file is opened in append mode ("a") so that new data is added at the end of existing data. The write() method is used to write each string to the file. A newline character (\n) is added at the end of each sentence to mark the end of line. Finally, the file is closed using close() method.
Explanation
The textbook explains that in append mode, new data is added at the end of the previous data. The write() method takes a string as an argument and writes it to the text file. The context specifically mentions that 'we need to add a newline character (\n) at the end of every sentence to mark the end of line.' The example in Program 2-3 demonstrates the pattern of opening a file, writing data using write(), and closing the file.
Solution Steps
Step 1: Open the file hello.txt in append mode using open() function with mode 'a'
Step 2: Use write() method to write each line with \n character at the end
Step 3: Close the file using close() method after writing all lines