What is wrong with this python snippet? : <p>script.py:-</p>

<pre><code>    try:
        command_line = sys.argv[1].strip()
    except IndexError:
        print "\n***PLEASE READ THE HEADER NOTE FOR RUNNING THIS PROGRAM***\n"
        exit(1)

    if command_line != "run" or command_line != "fullrun":
        print "\n***WRONG INPUT, PLEASE READ THE HEADER NOTE FOR RUNNING THIS\
 PROGRAM***\n"
        exit(1)
</code></pre>

<p>output:-</p>

<pre><code>$script.py run

***WRONG INPUT, PLEASE READ THE HEADER NOTE FOR RUNNING THIS PROGRAM***
</code></pre>

<p>What is wrong with the comparison or condition?</p>
