When is the "yield" keyword used in Python?

Best way to check if the object 'myobject' is iterable in Python?

In Python, built-in exceptions can be inherited from. Which of the following is the base exception class?

Given a program that saved a text file in the directory '/temp_files', which of the following will make sure that '/temp_files' exists before writing the file?

Read the following statements: >>> lst = ['spam','and','eggs'] >>> lst[2] = 'toast' >>> print ''.join(lst) >>> print ' '.join(lst) Which of the following is the output of the second print statement in the above code snippet?

Read the following statements: >>> import string >>> s = 'mary\011had a little lamb' >>> print s Which of the following will be the output of the above code snippet?

What is the best way to check if a list is empty? x = []

For the list 'thelist = [1, 2, 3, 4, 5]', how could the last two elements of the list (4, 5) be selected using slices?

Which code snippet can be used to get the multiples of 2 from the list a = [1, 2, 3, 4, 5, 6, 7, 8, 9] ?

What function is used to find the absolute path of a file?

What is the correct way to open the file 'test.txt' and append the text 'foo' to it?