Unit 15

Question 1

15.1 - Reading Files

What does open() do?

Answer 1

retrieves input based on a file

Question 2

15.1 - Reading Files

What is the difference between xfile.read() and xfile.readlines()?

Answer 2

.read returns ALL file contents into a string
.readlines returns a list with each element as a line from the text

Question 3

15.2 - Writing Files

What does xfile.write() do?

Answer 3

writes a string argument to a file

use \n to actually write it to the file

Question 4

15.2 - Writing Files

What are the three modes for editing a file?

Answer 4

r = reading
w = write (over)
a = append

Question 5

15.3 - Interacting with File Systems

What is portability?

Answer 5

the ability to access an item easily from multiple locations

Question 6

15.4 - Binary Data

What is binary data?

Answer 6

data stored in a sequence of bytes

Question 7

15.4 - Binary Data

What is a bytes object?

Answer 7

a sequence of single byte values

Question 8

15.5 - The “With” Statements

What is a with statement?

Answer 8

a function-like series of code that occurs while a file is opened; automatically closes once completed