Test Your Knowledge: Quiz

In most of this quiz’s questions, results may vary slightly in 2.X—with enclosing parentheses and commas when multiple values are printed. To match the 3.X answers exactly in 2.X, import print_function from __future__ before starting.

  1. What is the output of the following code, and why?

    >>> def func(a, b=4, c=5):
        print(a, b, c)

>>> func(1, 2)

  2. What is the output of this code, and why?

    >>> def func(a, b, c=5):
        print(a, b, c)

>>> func(1, c=3, b=2)

  3. How about this code: what is its output, and why?

    >>> def func(a, *pargs):
        print(a, pargs)

>>> func(1, 2, 3)

  4. What does this code print, and why?

    >>> def func(a, **kargs):
        print(a, kargs)

>>> func(a=1, c=3, b=2)

  5. What gets printed by this, and why?

    >>> def func(a, b, c=3, d=4): print(a, b, c, d)

>>> func(1, *(5, 6))

  6. One last time: what is the output of this code, and why?

    >>> def func(a, b, c): a = 2; b[0] = 'x'; c['a'] = 'y'

>>> l=1; m=[1]; n={'a':0}
>>> func(l, m,  n)
>>> l, m, n