seed: curriculum content

1.solar-system/2.first-light/03.the-repl/index.md

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+---
+type: challenge
+title: "The REPL"
+xp: 25
+duration: 25
+difficulty: 1
+---
+
+# The REPL
+
+> **[INCOMING — Mission Control, Earth]**
+>
+> Cadet, the *REPL* — Read, Evaluate, Print, Loop — is Python's
+> interactive shell. Open it on your machine with `python3` and
+> every line you type runs immediately:
+>
+> ```
+> >>> 5 + 7
+> 12
+> >>> "Hello".upper()
+> 'HELLO'
+> ```
+>
+> Use the REPL to figure out the answers. Then write them into a
+> function `compute` that returns a tuple of all five, in order:
+>
+> 1. `5 + 7`
+> 2. `100 - 25`
+> 3. `6 * 8`
+> 4. `"Hello" + " " + "World"`
+> 5. `2 ** 10`
+>
+> [END TRANSMISSION]
+
+## Your Task
+
+Open `starter/starter.py`. Replace `pass` with a `return` of a
+5-element tuple containing the values above.
+
+## Objectives
+
+- `compute()` returns a 5-element tuple
+- Each element matches the corresponding expression

1.solar-system/2.first-light/03.the-repl/starter/starter.py

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+def compute():
+    """Return a tuple of 5 computed values, in this order:
+
+    1. 5 + 7
+    2. 100 - 25
+    3. 6 * 8
+    4. "Hello" + " " + "World"
+    5. 2 ** 10
+    """
+    pass

1.solar-system/2.first-light/03.the-repl/testing/test_solution.py

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+from solution import compute
+
+
+def test_returns_five_values():
+    assert len(compute()) == 5
+
+
+def test_first_is_addition():
+    assert compute()[0] == 12
+
+
+def test_second_is_subtraction():
+    assert compute()[1] == 75
+
+
+def test_third_is_multiplication():
+    assert compute()[2] == 48
+
+
+def test_fourth_is_string_concat():
+    assert compute()[3] == "Hello World"
+
+
+def test_fifth_is_power():
+    assert compute()[4] == 1024