# Reviews

1. What type of file access jumps directly to any piece of data in a file without reading the data that came before it?

   • Sequential
   • Random
   • Number
   • Text

2. Assume that the customer file references a file object, and the file was opened using the w mode specifier. How would you write the string Mary Smith to the file?

   • customer_file.write('Mary Smith')
   • customer.write('w','Mary Smith')
   • customer.input('Mary Smith')
   • customer.write('Mary Smith')

3. What statement can be used to handle some of the run-time errors in a program?

   • exception statement
   • try statement
   • try/except statement
   • exception handler statement

4. What statement below is a correct call to function func?

   	def func(farg, **kwargs):
   	print ("formal arg:", farg)
   	for key in kwargs:
   	print ("another keyword arg: %s: %s" %
   	(key, kwargs[key]))

   • func('one','two', c='three',d='four')
   • func('one',c='three',d='four')
   • func(c='three',d='four')
   • func('one','two', 'three', 'four')

5. Which of these is associated with a specific file and provides a way for the program to work with that file?

   • Filename
   • Extension
   • File object
   • File variable

6. Which method will return an empty string when it has attempted to read beyond the end of a file?

   • read
   • getline
   • input
   • readline

7. What will be displayed given the following function definition and function call?

   	def divide(x, y):
   	try:
   	result = x / y
   	except ZeroDivisionError:
   	print ("division by zero!")
   	else:
   	print ("result is", result)
   	finally:
   	print ("executing finally clause")
   	divide(2, 1)

   result is 2.0
   executing finally clause

• Questions 8-9 refer to the following code.

  	# Open a file
  	fo = open("foo.txt", "w")
  	fo.write( "Python is a great language.\nYeah its great!!\n");
  	# Close opened file
  	fo.close()

8. What will be displayed given the code?

   	# Open a file
   	fo = open("foo.txt", "r+")
   	str = fo.read();
   	print ("Read String is : ", str)
   	# Close opened file
   	fo.close()

   Read String is : Python is a great language.
   Yeah its great!!

9. What will be displayed given the code?

   	# Open a file
   	fo = open("foo.txt", "r+")
   	str = fo.readline();
   	print ("Read String is : ", str)
   	# Close opened file
   	fo.close()

   Read String is : Python is a great language.