Then you started off with the wrong email. You said "I've got a fix and a test and now I need a reviewer to mark the ticket as RFC. Please take a look if you're familiar with this area of Django."
That added nothing new, because anyone who would review it has already been informed. That's what the reply told you. They have no idea who you are, or what you know about the process, or even that you want to follow the process.
You then followed up with "How else am I supposed to find someone to review my patch? I got no response on IRC." That does give the sense that you're exasperated. That doesn't help them understand that you want to work with them.
Also, your first email has the wrong tone, in several ways.
You wrote that you "need a reviewer to mark the ticket as RFC". That is a presumptive view, because it assumes that a reviewer will mark the ticket as RFC. The reviewer might say that it needs many changes, and pass it back to you for continued development.
Second, the line "Please take a look if you're familiar with this area of Django." is not helpful to the person reading the email. How does someone know if they are familiar with that area without actually going to the bug? They have to take a look. Which means that anyone who might review it will have to take a look, no matter if they are familiar with it or not.
My belief is that if you had asked a question about the process, rather than the patch, and explained how you were trying to work within the existing process, then you would have gotten a more useful answer. For example:
"I've just contributed my first patch to Trac. Now I'm waiting for a reviewer. I asked for one on IRC but got no answer after several hours. The contribute FAQ suggests asking here as well. Can someone here review <url> for me?"
That's gentler than the email you first sent. It would have probably gotten an answer like what the FAQ says:
Remember, "it’s not personal. Django is entirely developed by volunteers (even the core devs), and sometimes folks just don’t have time."
Instead of developing a patch, what about reviewing the patches that others have submitted? Do this enough times and someone will likely reciprocate.