Convert Interactive terminal Python example to sync

Author: beran-t

docs/sandbox/pty.mdx

@@ -386,53 +386,49 @@ try {
 ```
 
 ```python Python
-import asyncio
 import sys
 import tty
 import termios
-from e2b_code_interpreter import AsyncSandbox
-from e2b.sandbox_async.commands.pty import PtySize
-
-
-async def main():
-    sandbox = await AsyncSandbox.create()
-
-    # Save terminal settings
-    old_settings = termios.tcgetattr(sys.stdin)
-
-    try:
-        # Set terminal to raw mode
-        tty.setraw(sys.stdin.fileno())
-
-        # Write raw bytes directly to stdout (no extra newlines added)
-        terminal = await sandbox.pty.create(
-            size=PtySize(cols=80, rows=24),
-            on_data=lambda data: sys.stdout.buffer.write(data) or sys.stdout.flush(),
-            timeout=0,
-        )
-
-        # Forward stdin to PTY (simplified - production code needs async stdin reading)
-        async def read_stdin():
-            loop = asyncio.get_event_loop()
-            while True:
-                data = await loop.run_in_executor(None, sys.stdin.buffer.read, 1)
-                if data:
-                    await sandbox.pty.send_stdin(terminal.pid, data)
-
-        stdin_task = asyncio.create_task(read_stdin())
-
-        try:
-            await terminal.wait()
-        finally:
-            stdin_task.cancel()
-
-    finally:
-        # Restore terminal settings
-        termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)
-        await sandbox.kill()
+import threading
+from e2b_code_interpreter import Sandbox
 
+sandbox = Sandbox()
 
-asyncio.run(main())
+# Save terminal settings
+old_settings = termios.tcgetattr(sys.stdin)
+
+try:
+    # Set terminal to raw mode
+    tty.setraw(sys.stdin.fileno())
+
+    # Write raw bytes directly to stdout (no extra newlines added)
+    terminal = sandbox.pty.create(
+        cols=80,
+        rows=24,
+        on_data=lambda data: sys.stdout.buffer.write(data) or sys.stdout.flush(),
+        timeout=0,
+    )
+
+    # Forward stdin to PTY in a background thread
+    stop_event = threading.Event()
+
+    def read_stdin():
+        while not stop_event.is_set():
+            data = sys.stdin.buffer.read(1)
+            if data:
+                sandbox.pty.send_stdin(terminal.pid, data)
+
+    stdin_thread = threading.Thread(target=read_stdin, daemon=True)
+    stdin_thread.start()
+
+    # Wait for the terminal to exit
+    terminal.wait()
+
+finally:
+    stop_event.set()
+    # Restore terminal settings
+    termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)
+    sandbox.kill()
 ```
 </CodeGroup>