Infrastructure » Python Libraries

We may be adding support for the 100-Continue header in order to successfully upload content on some member node servers.

More description of the header's use from a Java client:

    'Expect: 100-Continue' handshake for the entity enclosing methods. 
    The purpose of the Expect: 100-Continue handshake is to allow the client 
    that is sending a request message with a request body to determine if 
    the origin server is willing to accept the request (based on the request 
    headers) before the client sends the request body. The use of the 
    Expect: 100-continue handshake can result in a noticeable performance 
    improvement for entity enclosing requests (such as POST and PUT) that 
    require the target server's authentication. 
    https://hc.apache.org/httpcomponents-client-4.2.x/tutorial/html/fundamentals.html