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plurals

POurllib2 write to upstream
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2012-03-02T11:50:15.363
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2012-03-02T14:26:37.030
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2012-03-02T13:06:08.553
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text
Body
I want to upload (large) random content to an HTTP endpoint. I create it, send it and it's never used again. So I'd like to skip saving it in a temporary file and using <code>{ 'file':open() }</code> as I also need to use form-urlencoded (instead of multipart). I was using pycurl and its READFUNCTION option, but I don't want to depend on pycurl. Is it possible to achieve this with urllib2? I have this code: <pre><code>def upload(): url = 'http://localhost:9999/' values = {'name' : 'Michael Foord', 'location' : 'Northampton', 'language' : open(file).read() } data = urllib.urlencode(values) req = urllib2.Request(url, data) response = urllib2.urlopen(req) the_page = response.read() </code></pre> But as it stands, the whole file will be read when values is defined. So if file was 1Gb of size, this wouldn't work very well (unless I misunderstood how it works). Also, I'd prefer not having to create the random-filled 1Gb file. <hr> Ok, I can subclass StringIO as Daniel mentioned and create the random data in read(), but how do I make urllib2 ask for read() chunks while uploading instead of having everything in memory at once? <hr> In an attempt to be more specific, what I'd really like is something like <code>urlConnectionInstance.getOutputStream()</code> in Java that I can then write to. Or some way to tell urllib2 to read from my own stream while it is actually dumping the data in the upload stream..
Tags
<python><urllib2>
Title
urllib2 write to upstream
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