primeiro commit com exercicios de Exercism realizados até esta data

python/perfect-numbers/perfect_numbers.py

@@ -0,0 +1,20 @@
+def classify(number):
+    """A perfect number equals the sum of its positive divisors.
+
+    :param number: int a positive integer
+    :return: str the classification of the input integer
+    """
+    if number <= 0:
+        raise ValueError(
+            "Classification is only possible for positive integers.")
+    aliquot_sum: int = 0
+    # find divisors and store them in a list
+    for divisor in range(1, (number // 2) + 1):
+        if not number % divisor:
+            aliquot_sum += divisor
+    if aliquot_sum == number:
+        return "perfect"
+    elif aliquot_sum > number:
+        return "abundant"
+    else:
+        return "deficient"