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python: HTTP PUT with unencoded binary data
Content-Type: application/octet-stream
Content-Length: (whatever my binary data length is)

import urllib2

data = b'binary-data'
r = urllib2.Request('http://example.net/put', data,
                    {'Content-Type': 'application/octet-stream'})
r.get_method = lambda: 'PUT'
urllib2.urlopen(r)

PUT /put HTTP/1.1
Accept-Encoding: identity
Content-Length: 11
Host: example.net
Content-Type: application/octet-stream
Connection: close
User-Agent: Python-urllib/2.7

binary-data

# headers contains `{'Content-Type': 'application/octet-stream'}`
r = urllib2.Request(url.encode('utf-8'), data, headers)