chore: checkpoint before Python removal

vendor/mio/src/sys/shell/tcp.rs

@@ -0,0 +1,31 @@
+use std::io;
+use std::net::{self, SocketAddr};
+
+#[cfg(not(target_os = "wasi"))]
+pub(crate) fn new_for_addr(_: SocketAddr) -> io::Result<i32> {
+    os_required!();
+}
+
+#[cfg(not(target_os = "wasi"))]
+pub(crate) fn bind(_: &net::TcpListener, _: SocketAddr) -> io::Result<()> {
+    os_required!();
+}
+
+#[cfg(not(target_os = "wasi"))]
+pub(crate) fn connect(_: &net::TcpStream, _: SocketAddr) -> io::Result<()> {
+    os_required!();
+}
+
+#[cfg(not(target_os = "wasi"))]
+pub(crate) fn listen(_: &net::TcpListener, _: i32) -> io::Result<()> {
+    os_required!();
+}
+
+#[cfg(any(unix, target_os = "hermit"))]
+pub(crate) fn set_reuseaddr(_: &net::TcpListener, _: bool) -> io::Result<()> {
+    os_required!();
+}
+
+pub(crate) fn accept(_: &net::TcpListener) -> io::Result<(net::TcpStream, SocketAddr)> {
+    os_required!();
+}