: This represents the /root/ directory, which is the home directory for the superuser (root) on Linux/Unix-based systems. What It Does
%2F (or -2F in certain filtered contexts) is the encoded forward slash / . -template-..-2F..-2F..-2F..-2Froot-2F
template = "templates/" + user_input + ".html" with open(template) as f: return render(f.read()) : This represents the /root/ directory, which is