ch01: separate getting arguments from main

JBSP-code · JBSP-code · commit ca2b9c62c0e8 · 2023-01-02T13:46:09.000+01:00
diff --git a/01_hello/hello.py b/01_hello/hello.py
@@ -4,12 +4,16 @@
 import argparse
 
 
-def main():
+def get_args():
     parser = argparse.ArgumentParser(description="Say hello")
     parser.add_argument(
         "-n", "--name", metavar="name", default="World", help="Name to greet"
     )
-    args = parser.parse_args()
+    return parser.parse_args()
+
+
+def main():
+    args = get_args()
     print("Hello, " + args.name + "!")
 
 
