Make default headers editable on Python side

[sadikhan918]

Hello,

I want to use impersonation on a session but I also want to see the header values before I send a request (like the user agent). When I instantiate the session object with impersonation, the headers dict remains empty. Is this meant to be intended? I read online that this might be because the headers are dynamically created on request but I feel like if a session is used then they would be saved somewhere inside the session.

I don't know if this feature exists or I haven't found it. Wanted to ask and see if there was an answer.

[lexiforest]

This behavior was introduced from upstream libcurl-impersonate. I acknowledge that it can be somewhat obscure for Python users and I will try to bring more logic to the Python side.

This will probably be updated when we add support for http header order.

For now, you can turn off this behavior with default_headers=False and bring you own headers.