w5

Question 1

advantages of files as lists of lines

Answer 1

can access lines in random order
able to specify encoding
more explicit about what its doing

Question 2

disadvantages of files with lines

Answer 2

needs enough memory to hold the whole file

Question 3

open(filename, “r”)

Answer 3

• acts like a bookmark after last character is read

Question 4

open(filename, “a”)

Answer 4

a acts to append at the end of an existing file

Question 5

open(filename, “w”)

Answer 5

bookmark updates after each write

Question 6

what is raise function used for

Answer 6

to identify exceptions

Question 7

read()

Answer 7

return whole data as a single string