This notebook was prepared by Donne Martin. Source and license info is on GitHub.
Refer to the Solution Notebook. If you are stuck and need a hint, the solution notebook's algorithm discussion might be a good place to start.
class Permutations(object):
def is_permutation(self, str1, str2):
# TODO: Implement me
pass
The following unit test is expected to fail until you solve the challenge.
# %load test_permutation_solution.py
import unittest
class TestPermutation(unittest.TestCase):
def test_permutation(self, func):
self.assertEqual(func(None, 'foo'), False)
self.assertEqual(func('', 'foo'), False)
self.assertEqual(func('Nib', 'bin'), False)
self.assertEqual(func('act', 'cat'), True)
self.assertEqual(func('a ct', 'ca t'), True)
self.assertEqual(func('dog', 'doggo'), False)
print('Success: test_permutation')
def main():
test = TestPermutation()
permutations = Permutations()
test.test_permutation(permutations.is_permutation)
try:
permutations_alt = PermutationsAlt()
test.test_permutation(permutations_alt.is_permutation)
except NameError:
# Alternate solutions are only defined
# in the solutions file
pass
if __name__ == '__main__':
main()
Review the Solution Notebook for a discussion on algorithms and code solutions.