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    <p>If you are downloading the remote file through HTTP, you need to set the <code>Range</code> header.</p> <p>Check <a href="http://code.activestate.com/recipes/83208/" rel="nofollow noreferrer">in this example</a> how it can be done. Looks like this:</p> <pre><code>myUrlclass.addheader("Range","bytes=%s-" % (existSize)) </code></pre> <p><strong>EDIT</strong>: <a href="http://74.125.93.132/search?q=cache:1B4vbPKIz-YJ:linux.duke.edu/projects/urlgrabber/contents/urlgrabber/byterange.py+urllib+range+header&amp;cd=2&amp;hl=en&amp;ct=clnk&amp;client=firefox-a" rel="nofollow noreferrer">I just found a better implementation</a>. This class is very simple to use, as it can be seen in the docstring.</p> <pre><code>class HTTPRangeHandler(urllib2.BaseHandler): """Handler that enables HTTP Range headers. This was extremely simple. The Range header is a HTTP feature to begin with so all this class does is tell urllib2 that the "206 Partial Content" reponse from the HTTP server is what we expected. Example: import urllib2 import byterange range_handler = range.HTTPRangeHandler() opener = urllib2.build_opener(range_handler) # install it urllib2.install_opener(opener) # create Request and set Range header req = urllib2.Request('http://www.python.org/') req.header['Range'] = 'bytes=30-50' f = urllib2.urlopen(req) """ def http_error_206(self, req, fp, code, msg, hdrs): # 206 Partial Content Response r = urllib.addinfourl(fp, hdrs, req.get_full_url()) r.code = code r.msg = msg return r def http_error_416(self, req, fp, code, msg, hdrs): # HTTP's Range Not Satisfiable error raise RangeError('Requested Range Not Satisfiable') </code></pre> <p><strong>Update</strong>: The "better implementation" has moved to <a href="https://github.com/excid3/urlgrabber" rel="nofollow noreferrer">github: excid3/urlgrabber</a> in the <a href="https://github.com/excid3/urlgrabber/blob/master/byterange.py" rel="nofollow noreferrer">byterange.py</a> file.</p>
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    1. CO+1 for the update w/ better implementation.
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    2. COjust what I needed. thanks.
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