Tunnel prevent message when Ctrl+C

scripts/tunnel

@@ -1,29 +1,32 @@
 #!/usr/bin/env python3
 
-import sys
-import os
-from subprocess import call
+try:
+    import sys
+    import os
+    from subprocess import call
 
-host, port = sys.argv[1:3]
-proxy = os.environ.get('HTTP_PROXY')
+    host, port = sys.argv[1:3]
+    proxy = os.environ.get('HTTP_PROXY')
 
-if proxy:
-    proxy = proxy.strip('/')
-    if proxy[:7] == 'http://':
-        proxy = proxy[7:]
-    elif proxy[:8] == 'https://':
-        proxy = proxy[8:]
-    s = proxy.split('@')
-    user = None
-    if len(s) == 2:
-        user, proxy = s
-    args = ['proxytunnel', '-p', proxy, '-d', host + ':' + port]
-    if user:
-        args += ['-P', user]
-    call(args)
+    if proxy:
+        proxy = proxy.strip('/')
+        if proxy[:7] == 'http://':
+            proxy = proxy[7:]
+        elif proxy[:8] == 'https://':
+            proxy = proxy[8:]
+        s = proxy.split('@')
+        user = None
+        if len(s) == 2:
+            user, proxy = s
+        args = ['proxytunnel', '-p', proxy, '-d', host + ':' + port]
+        if user:
+            args += ['-P', user]
+        call(args)
 
-else:
-    call(['nc', host, port])
+    else:
+        call(['nc', host, port])
+except KeyboardInterrupt:
+    pass
 
 
 # #!/usr/bin/env bash