What is actual meaning of r'^ icon in every urls? can any one explain what is his meaning and how important this are in details

Question

This is the code in question:

url(r'^dreamreals/', ListView.as_view(model = Dreamreal, 
  template_name = "dreamreal_list.html")),
)

Answer 1

url() paths are regular expressions. The ^ character anchors the regular expression to the start of the string. The r prefix to the string literal means that backslashes, etc. are not interpreted (a so-called raw string).

In modern Django, you'd probably want to use path() instead of url() (which is called re_path() these days).