2017-08-15

python/leap/.cache/v/cache/lastfailed

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+{}

python/leap/README.md

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+# Leap
+
+Given a year, report if it is a leap year.
+
+The tricky thing here is that a leap year in the Gregorian calendar occurs:
+
+```plain
+on every year that is evenly divisible by 4
+  except every year that is evenly divisible by 100
+    unless the year is also evenly divisible by 400
+```
+
+For example, 1997 is not a leap year, but 1996 is.  1900 is not a leap
+year, but 2000 is.
+
+If your language provides a method in the standard library that does
+this look-up, pretend it doesn't exist and implement it yourself.
+
+## Notes
+
+Though our exercise adopts some very simple rules, there is more to
+learn!
+
+For a delightful, four minute explanation of the whole leap year
+phenomenon, go watch [this youtube video][video].
+
+[video]: http://www.youtube.com/watch?v=xX96xng7sAE
+
+### Submitting Exercises
+
+Note that, when trying to submit an exercise, make sure the solution is in the `exercism/python/<exerciseName>` directory.
+
+For example, if you're submitting `bob.py` for the Bob exercise, the submit command would be something like `exercism submit <path_to_exercism_dir>/python/bob/bob.py`.
+
+
+For more detailed information about running tests, code style and linting,
+please see the [help page](http://exercism.io/languages/python).
+
+## Source
+
+JavaRanch Cattle Drive, exercise 3 [http://www.javaranch.com/leap.jsp](http://www.javaranch.com/leap.jsp)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.

python/leap/leap.py

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+def is_leap_year(yr):
+    return yr % 4 == 0 and (yr % 100 != 0 or yr % 400 == 0)

python/leap/leap_test.py

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+import unittest
+
+from leap import is_leap_year
+
+
+# test cases adapted from `x-common//canonical-data.json` @ version: 1.0.0
+
+class YearTest(unittest.TestCase):
+    def test_year_not_divisible_by_4(self):
+        self.assertFalse(is_leap_year(2015))
+
+    def test_year_divisible_by_4_not_divisible_by_100(self):
+        self.assertTrue(is_leap_year(2016))
+
+    def test_year_divisible_by_100_not_divisible_by_400(self):
+        self.assertFalse(is_leap_year(2100))
+
+    def test_year_divisible_by_400(self):
+        self.assertTrue(is_leap_year(2000))
+
+
+if __name__ == '__main__':
+    unittest.main()