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Id
20557831
data
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0
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0
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0
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CreationDate
2013-12-13T02:00:13.353
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0
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2013-12-13T02:44:10.557
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2013-12-13T02:44:10.557
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3047642
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3047642
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20557763
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2
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5
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0
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text
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The <code>thread.start_new_thread</code> function is really low-level and doesn't give you a lot of control. Take a look at the <code>threading</code> module, more specifically the <code>Thread</code> class: <a href="http://docs.python.org/2/library/threading.html#thread-objects" rel="nofollow">http://docs.python.org/2/library/threading.html#thread-objects</a> You then want to replace the last 2 lines of your script with: <pre><code># This line should be at the top of your file, obviously :p from threading import Thread threads = [] for i in sites: t = Thread(target=ftpconnect, args=[i]) threads.append(t) t.start() # Wait for all the threads to complete before exiting the program. for t in threads: t.join() </code></pre> Your code was failing, by the way, because in your <code>for</code> loop, you were calling <code>ftpconnect(i)</code>, waiting for it to complete, and then trying to use its return value (that is, <code>None</code>) to start a new thread, which obviously doesn't work. In general, starting a thread is done by giving it a callable object (function/method -- you want the callable object, not the result of a call -- <code>my_function</code>, not <code>my_function()</code>), and optional arguments to give the callable object (in our case, <code>[i]</code> because <code>ftpconnect</code> takes one positional argument and you want it to be <code>i</code>), and then calling the <code>Thread</code> object's <code>start</code> method.
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