add method last

README.md

@@ -274,7 +274,7 @@ R.keys(c) # ['c'], because c does not call super().__init__()
 ```
 
 - [ ] keysIn
-- [ ] last
+- [x] last
 - [x] 0.1.2 lastIndexOf
 - [ ] length
 - [ ] lens

ramda/__init__.py

@@ -41,6 +41,7 @@
 from .isEmpty import isEmpty
 from .join import join
 from .keys import keys
+from .last import last
 from .lastIndexOf import lastIndexOf
 from .lt import lt
 from .lte import lte

ramda/last.py

@@ -0,0 +1,3 @@
+from .nth import nth
+
+last = nth(-1)

test/test_last.py

@@ -0,0 +1,29 @@
+
+import unittest
+
+import ramda as R
+
+"""
+https://github.com/ramda/ramda/blob/master/test/last.js
+"""
+
+
+class TestLast(unittest.TestCase):
+  def test_returns_the_last_element_of_an_ordered_collection(self):
+    self.assertEqual(3, R.last([1, 2, 3]))
+    self.assertEqual(2, R.last([1, 2]))
+    self.assertEqual(1, R.last([1]))
+    self.assertEqual(None, R.last([]))
+
+    self.assertEqual('c', R.last('abc'))
+    self.assertEqual('b', R.last('ab'))
+    self.assertEqual('a', R.last('a'))
+    self.assertEqual('', R.last(''))
+
+  def test_throws_if_applied_to_None(self):
+    with self.assertRaises(TypeError):
+      R.last(None)
+
+
+if __name__ == '__main__':
+  unittest.main()