Which of the following is the best way to reverse the string 'Test String' in Python?

What is the result of the following code: >>> import itertools >>> x = itertools.count(0) >>> x.__class__.__name__

What is the most flexible way to call the external command 'ls -l' in Python?

Which is the correct method for changing a global variable inside a function?

Which list flattening method will have the shortest running time?

Which is the correct way to flush output of Python print?

Read the following code snippet: >>> o1 = C() >>> o1.lst = [1,2,3] >>> o3 = copy.deepcopy(o1) >>> o1.lst.append(17) What will be the output of '>>> o3.lst' and '>>> o1.lst'?

Read the following statements: Statement 1: By default, a print statement adds a linefeed to the end of its output. Statement 2: The linefeed can be eliminated by adding a trailing comma to the statement. Which of the following is correct?

Which will close a list in Python?

Which statement about the 'has_key()' dictionary method and the 'in' operator are true? d = {'a': 1, 'b': 2} 'a' in d d.has_key('a')

Which statement is correct?