Code cleanup.

Author: ccie18643

examples/icmp_echo_client.py

@@ -204,11 +204,10 @@ def _thread__client(self) -> None:
     default=None,
     help="IPv4 gateway address to be assigned to the interface.",
 )
-@click.option(
-    "--remote-ip-address",
+@click.argument(
+    "remote_ip_address",
     type=ClickTypeIpAddress(),
     required=True,
-    help="Remote IP address to be pinged.",
 )
 def cli(
     *,
@@ -249,6 +248,10 @@ def cli(
                 local_ip_address=ip4_host.address if ip4_host else Ip4Address(),
                 remote_ip_address=remote_ip_address,
             )
+        case _:
+            raise ValueError(
+                f"Unsupported IP version: {remote_ip_address.version}"
+            )
 
     try:
         stack.start()

examples/tcp_echo_client.py

@@ -181,11 +181,10 @@ def _thread__client(self) -> None:
     default=None,
     help="IPv4 gateway address to be assigned to the interface.",
 )
-@click.option(
-    "--remote-ip-address",
+@click.argument(
+    "remote_ip_address",
     type=ClickTypeIpAddress(),
     required=True,
-    help="Remote IP address of the TCP Echo server.",
 )
 def cli(
     *,

examples/udp_echo_client.py

@@ -162,11 +162,10 @@ def _thread__client(self) -> None:
     default=None,
     help="IPv4 gateway address to be assigned to the interface.",
 )
-@click.option(
-    "--remote-ip-address",
+@click.argument(
+    "remote_ip_address",
     type=ClickTypeIpAddress(),
     required=True,
-    help="Remote IP address of the UDP Echo server.",
 )
 def cli(
     *,

requirements_dev.txt

@@ -12,3 +12,4 @@ twine
 ipython
 pyupgrade
 parameterized
+types-click