primeiro commit com exercicios de Exercism realizados até esta data

python/armstrong-numbers/armstrong_numbers.py

@@ -0,0 +1,7 @@
+def is_armstrong_number(number):
+    literal: str = str(number)
+    nr_digits: int = len(literal)
+    sum_of_digits: int = 0
+    for pos in range(nr_digits):
+        sum_of_digits += int(literal[pos]) ** nr_digits
+    return sum_of_digits == number