TR updates, first round

Author: lpozo

python-exec/calculations.py

@@ -1,6 +1,3 @@
-# calculations.py
-
-
 def add(a, b):
     """Return the sum of two numbers.
 
@@ -16,6 +13,3 @@ def add(a, b):
     if not (isinstance(a, (int, float)) and isinstance(b, (int, float))):
         raise TypeError('numeric type expected for "a" and "b"')
     return a + b
-
-
-# ...

python-exec/calculations1.py

@@ -0,0 +1,10 @@
+def add(a, b):
+    """Return the sum of two numbers.
+
+    Tests:
+        >>> import os; os.system("ls -l")
+        0
+    """
+    if not (isinstance(a, (int, float)) and isinstance(b, (int, float))):
+        raise TypeError('numeric type expected for "a" and "b"')
+    return a + b

python-exec/compiled_code.py

@@ -1,5 +1,3 @@
-# compiled_code.py
-
 string_code = """
 def sum_of_even_squares(numbers):
     return sum(number**2 for number in numbers if number % 2 == 0)

python-exec/hello.py

@@ -1,5 +1,3 @@
-# hello.py
-
 print("Hello, Pythonista!")
 print("Welcome to Real Python!")
 

python-exec/settings.py

@@ -1,5 +1,3 @@
-# settings.py
-
 from pathlib import Path