I need to run my development through nginx due to some complicated subdomain routing rules in my pylons app that wouldn't be handled otherwise.
I had been using lighttpd + paster + Flup#scgi_thread and the nice error reporting by Pylons had been working fine in that environment.
Yesterday I recompiled Python and MySQL for 64bit, and also switched to Ngix + paster + Flup#fcgi_thread for my development environment.
Everything is working great, but I miss the fancy error reports. This is what I get now, and it is a mess compared to what I got used to:
.
And here are the pylons/nginx configs.
Pylons:
[server:main]
use = egg:Flup#fcgi_thread
host = 0.0.0.0
port = 6500
Nginx:
location / {
    #include /usr/local/nginx/conf/fastcgi.conf;
    fastcgi_param PATH_INFO $fastcgi_script_name;
    fastcgi_param REQUEST_METHOD $request_method;
    fastcgi_param QUERY_STRING $query_string;
    fastcgi_param CONTENT_TYPE $content_type;
    fastcgi_param CONTENT_LENGTH $content_length;
    fastcgi_param  SERVER_ADDR        $server_addr;
    fastcgi_param  SERVER_PORT        $server_port;
    fastcgi_param  SERVER_NAME        $server_name;
    fastcgi_param  SERVER_PROTOCOL    $server_protocol;
    fastcgi_param  REMOTE_ADDR        $remote_addr;
    fastcgi_pass_header Authorization;
    fastcgi_intercept_errors off;
    fastcgi_pass 127.0.0.1:6500;
}