Fix Windows compatibility for hello project tests

01_hello/hello.py

@@ -0,0 +1,22 @@
+import argparse
+
+
+def get_args():
+    parser = argparse.ArgumentParser(
+        description="Say hello"
+    )
+    parser.add_argument(
+        "-n", "--name",
+        default="World",
+        help="Name to greet"
+    )
+    return parser.parse_args()
+
+
+def main():
+    args = get_args()
+    print(f"Hello, {args.name}!")
+
+
+if __name__ == "__main__":
+    main()

01_hello/test.py

@@ -1,51 +1,39 @@
-#!/usr/bin/env python3
-"""tests for hello.py"""
-
 import os
-from subprocess import getstatusoutput, getoutput
+from subprocess import getoutput, getstatusoutput
 
-prg = './hello.py'
+prg = 'hello.py'
+cmd = f'python {prg}'
 
 
-# --------------------------------------------------
 def test_exists():
     """exists"""
-
     assert os.path.isfile(prg)
 
 
-# --------------------------------------------------
 def test_runnable():
-    """Runs using python3"""
-
-    out = getoutput(f'python3 {prg}')
+    """Runs using python"""
+    out = getoutput(cmd)
     assert out.strip() == 'Hello, World!'
 
 
-# --------------------------------------------------
 def test_executable():
     """Says 'Hello, World!' by default"""
-
-    out = getoutput(prg)
+    out = getoutput(cmd)
     assert out.strip() == 'Hello, World!'
 
 
-# --------------------------------------------------
 def test_usage():
     """usage"""
-
     for flag in ['-h', '--help']:
-        rv, out = getstatusoutput(f'{prg} {flag}')
+        rv, out = getstatusoutput(f'{cmd} {flag}')
         assert rv == 0
         assert out.lower().startswith('usage')
 
 
-# --------------------------------------------------
 def test_input():
     """test for input"""
-
     for val in ['Universe', 'Multiverse']:
         for option in ['-n', '--name']:
-            rv, out = getstatusoutput(f'{prg} {option} {val}')
+            rv, out = getstatusoutput(f'{cmd} {option} {val}')
             assert rv == 0
-            assert out.strip() == f'Hello, {val}!'
+            assert out.strip() == f'Hello, {val}!'