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python/hello-world/README.md

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+# Hello World
+
+Write a program that greets the user by name, or by saying "Hello, World!" if no name is given.
+
+["Hello, World!"](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program) is the traditional first program for beginning programming in a new language.
+
+**Note:** You can skip this exercise by running:
+
+    exercism skip $LANGUAGE hello-world
+
+## Specification
+
+The `Hello World!` program will greet me, the caller.
+
+If I tell the program my name is Alice, it will greet me by saying "Hello, Alice!".
+
+If I neglect to give it my name, it will greet me by saying "Hello, World!"
+
+## Test-Driven Development
+
+As programmers mature, they eventually want to test their code.
+
+Here at Exercism we simulate [Test-Driven Development](http://en.wikipedia.org/wiki/Test-driven_development) (TDD), where you write your tests before writing any functionality. The simulation comes in the form of a pre-written test suite, which will signal that you have solved the problem.
+
+It will also provide you with a safety net to explore other solutions without breaking the functionality.
+
+### A typical TDD workflow on Exercism:
+
+1. Run the test file and pick one test that's failing.
+2. Write some code to fix the test you picked.
+3. Re-run the tests to confirm the test is now passing.
+4. Repeat from step 1.
+5. [Submit your solution](http://help.exercism.io/submitting-exercises.html).
+
+## Instructions
+
+Submissions are encouraged to be general, within reason. Having said that, it's also important not to over-engineer a solution.
+
+It's important to remember that the goal is to make code as expressive and readable as we can. However, solutions to the hello-world exercise will be not be reviewed by a person, but by rikki- the robot, who will offer an encouraging word.
+
+### 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`.
+
+## Source
+
+This is a program to introduce users to using Exercism [view source](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program)

python/hello-world/hello_world.py

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+#
+# Skeleton file for the Python "Hello World" exercise.
+#
+
+
+def hello(name=''):
+    return

python/hello-world/hello_world_test.py

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+# -*- coding: utf-8 -*-
+
+from __future__ import unicode_literals
+import unittest
+
+import hello_world
+
+
+class BobTests(unittest.TestCase):
+
+    def test_hello_without_name(self):
+        self.assertEqual(
+            'Hello, World!',
+            hello_world.hello()
+        )
+
+    def test_hello_with_name(self):
+        self.assertEqual(
+            'Hello, Jane!',
+            hello_world.hello('Jane')
+        )
+
+    def test_hello_with_umlaut_name(self):
+        self.assertEqual(
+            'Hello, Jürgen!',
+            hello_world.hello('Jürgen')
+        )
+
+if __name__ == '__main__':
+    unittest.main()