title: Python Requests, how to specify port for outgoing traffic?
body: <p>I'm working on a project where we want to assign a whitelist packet filters for incoming traffic on a firewall and we are using python script with requests library to make some https requests to some servers outside of that network. For now the script is using ephemeral ports to connect to the servers, but we would like to make these https requests through specific ports. This would allow us to create strict whitelist for these ports.</p>
  
  <p>How can I specify the port to the requests library through which the request should be sent? Script is currently using the following type of code to send the necessary requests.</p>
  
  <pre><code>response = requests.post(data[0], data=query, headers=headers, timeout=10)
  </code></pre>
  
  <p>This works, but I would now need to specify the port through which the http post request should be sent to allow for more strict packet filtering on the network. How could this port declaration be achieved? I have searched for solution to this from several sources already and came up with absolutely nothing.</p>