GameObject.CompareTag  

// Immediate death trigger.
// Destroys any colliders that enter the trigger, if they are tagged player.
function OnTriggerEnter (other : Collider) {
if (other.gameObject.CompareTag ("Player")) {
Destroy (other.gameObject);
}
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void OnTriggerEnter(Collider other) {
if (other.gameObject.CompareTag("Player"))
Destroy(other.gameObject);

}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def OnTriggerEnter(other as Collider):
if other.gameObject.CompareTag('Player'):
Destroy(other.gameObject)