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Date: Wed, 17 Jun 2015 21:59:35 -0600
From: Michael Torrie <torriem@gmail.com>
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To: python-list@python.org
Subject: Re: Posting gzip'd image file - server says Malformed Upload?
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Xref: csiph.com comp.lang.python:92803

On 06/17/2015 09:48 PM, Paul Hubert wrote:
> Same result - server says malformed upload. :/

You may want to run a sniffer like wireshark and see what the difference
is between the packets coming from your C# program and coming from Python.