How to use _try_reserve_port method in localstack

Best Python code snippet using localstack_python

net.py

Source:net.py

...182                f"The requested port ({port}) is not in the port range ({ports_range})."183            )184        with self._ports_lock:185            if port is not None:186                return self._try_reserve_port(port, duration=duration)187            else:188                for port_in_range in ports_range:189                    try:190                        return self._try_reserve_port(port_in_range, duration=duration)191                    except PortNotAvailableException:192                        # We ignore the fact that this single port is reserved, we just check the next one193                        pass194        raise PortNotAvailableException(195            "No free network ports available in the port range (currently reserved: %s)",196            list(self._ports_cache.keys()),197        )198    def _try_reserve_port(self, port: int, duration: int) -> int:199        """Checks if the given port is currently not reserved and can be bound."""200        if not self._ports_cache.get(port) and port_can_be_bound(port):201            # reserve the port for a short period of time202            self._ports_cache[port] = "__reserved__"203            if duration:204                self._ports_cache.set_expiry(port, duration)205            return port206        else:...

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