revert username changes for simplicity

Author: svlandeg

docs/tutorial/arguments/help.md

@@ -159,21 +159,21 @@ NAME
 
 But you can customize it with the `metavar` parameter for `typer.Argument()`.
 
-For example, let's say you don't want to have the default of `NAME`, you want to display it as `user`, in lowercase, and you really want ✨ emojis ✨ everywhere:
+For example, let's say you don't want to have the default of `NAME`, you want to have `username`, in lowercase, and you really want ✨ emojis ✨ everywhere:
 
 {* docs_src/arguments/help/tutorial006_an_py310.py hl[9] *}
 
-Now the generated help text will have `✨user✨` instead of `NAME`:
+Now the generated help text will have `✨username✨` instead of `NAME`:
 
 <div class="termy">
 
 ```console
 $ python main.py --help
 
-Usage: main.py [OPTIONS] [✨user✨]
+Usage: main.py [OPTIONS] [✨username✨]
 
 Arguments:
-  [✨user✨]  [default: World]
+  [✨username✨]  [default: World]
 
 Options:
   --help                Show this message and exit.

docs_src/arguments/help/tutorial006_an_py310.py

@@ -6,7 +6,7 @@
 
 
 @app.command()
-def main(name: Annotated[str, typer.Argument(metavar="✨user✨")] = "World"):
+def main(name: Annotated[str, typer.Argument(metavar="✨username✨")] = "World"):
     print(f"Hello {name}")
 
 

docs_src/arguments/help/tutorial006_py310.py

@@ -4,7 +4,7 @@
 
 
 @app.command()
-def main(name: str = typer.Argument("World", metavar="✨user✨")):
+def main(name: str = typer.Argument("World", metavar="✨username✨")):
     print(f"Hello {name}")
 
 

tests/test_tutorial/test_arguments/test_help/test_tutorial006.py

@@ -40,9 +40,8 @@ def get_app(mod: ModuleType, request: pytest.FixtureRequest) -> typer.Typer:
 def test_help(app):
     result = runner.invoke(app, ["--help"])
     assert result.exit_code == 0
-    assert "Usage: main [OPTIONS] [✨user✨]" in result.output
+    assert "Usage: main [OPTIONS] [✨username✨]" in result.output
     assert "Arguments" in result.output
-    assert "name" not in result.output
     assert "[default: World]" in result.output