change function to return greeting, not print directly

diff --git a/src/hello/hello.py b/src/hello/hello.py
index d56b4ae500724c5c1986a11a3e9f8f9dcc34a6a9..a97e848bb0a6ce67b634c19e4676143be83df69a 100755 (executable)
--- a/src/hello/hello.py
+++ b/src/hello/hello.py
@@ -3,7 +3,8 @@
 import sys
 
 def greet(who_to_greet: str):
-    print('Hello', who_to_greet)
+    return 'Hello ' + who_to_greet
 
 
-greet(sys.argv[1])
+greeting = greet(sys.argv[1])
+print(greeting)