Common Gateway Interface (CGI) is a standard in web programming by which custom scripts can be used to produce web server output. You would like to catch the HTML form input from a user's browser, redirect it to another page, and acknowledge a user action.
We first need to run a web server that supports CGI scripts. We placed our Python CGI script inside a
cgi-bin/ subdirectory and then visited the HTML page that contains the feedback form. Upon submitting this form, our web server will send the form data to the CGI script, and we'll see the output produced by this script.
Listing 5.7 shows us how the Python web server supports CGI:
#!/usr/bin/env python # Python Network ...