Chapter 3 Exercise Set 1: Doctest Exercises

Strings, lists, and tuples doctest exercises

Download test_scaffolding.py, a file containing the test scaffolding you were introduced to in Chapter 2 Exercise Set 1: Introducing Doctest, or copy it from here:

"""
Put your tests here:

  >>>

"""
# Put your solutions here:


if __name__ == "__main__":
    import doctest
    doctest.testmod()

Copy it to a new file for each doctest exercise.

  1. """
  >>> type(thing1)
  <class 'list'>
  >>> type(thing2)
  <class 'tuple'>
  >>> type(thing3)
  <class 'str'>
"""

  2. """
  >>> thing[3]
  7
  >>> len(thing)
  5
"""

  3. """
  >>> seq[2:5]
  [13, 11, 9]
"""

  4. """
  >>> whatsthis[2]
  42
  >>> type(whatsthis[4])
  <class 'list'>
  >>> whatsthis[6:8]
  [11, 'what is this?']
  >>> len(whatsthis)
  10
"""

  5. """
  >>> thing[2] = 17
  >>> thing[2]
  17
"""

  6. """
  >>> tricky[4]
  'this'
  >>> tricky[8]
  42
  >>> type(tricky[7])
  <class 'tuple'>
  >>> type(tricky[0])
  <class 'list'>
  >>> len(tricky)
  12
"""

  7. """
  >>> a_list[3]
  42
  >>> a_list[6]
  'Ni!'
  >>> len(a_list)
  8
"""

  8. """
  >>> b_list[1:]
  ['Stills', 'Nash']
  >>> group = b_list + c_list
  >>> group[-1]
  'Young'
"""

  9. """
  >>> 'war' in mystery_list
  False
  >>> 'peace' in mystery_list
  True
  >>> 'justice' in mystery_list
  True
  >>> 'oppression' in mystery_list
  False
  >>> 'equality' in mystery_list
  True
"""

More strings, lists and tuples doctest exercises

  1. """
  >>> type(thing)
  <class 'list'>
  >>> type(thing[3])
  <class 'tuple'>
  >>> type(thing[0])
  <class 'str'>
  >>> type(thing[2])
  <class 'list'>
  >>> len(thing)
  4
  >>> 8 in thing
  True
"""

  2. """
  >>> another_thing[1]
  'happiness'
  >>> len(another_thing)
  5
  >>> 42 in another_thing
  True
  >>> type(another_thing) == type([])
  False
"""

  3. """
  >>> seq[2:5]
  [13, 11, 9]
"""