Utility Modules

This section presents the source code of the utility modules imported and used by the page scripts shown above. There aren’t any new screen shots to see here, because these are utilities, not CGI scripts (notice their .py extensions). Moreover, these modules aren’t all that useful to study in isolation, and are included here primarily to be referenced as you go through the CGI scripts’ code. See earlier in this chapter for additional details not repeated here.

External Components

When I install PyMailCgi and other server-side programs shown in this book, I simply upload the contents of the Cgi-Web examples directory on my laptop to the top-level web directory on my server account (public_html ). The Cgi-Web directory also lives on this book’s CD (see http://examples.oreilly.com/python2), a mirror of the one on my PC. I don’t copy the entire book examples distribution to my web server, because code outside the Cgi-Web directory isn’t designed to run on a web server.

When I first installed PyMailCgi, however, I ran into a problem: it’s written to reuse modules coded in other parts of the book, and hence in other directories outside Cgi-Web. For example, it reuses the mailconfig and pymail modules we wrote in Chapter 11, but neither lives in the CGI examples directory. Such external dependencies are usually okay, provided we use package imports or configure sys.path appropriately on startup. In the context of CGI scripts, though, what lives on my development machine ...

Get Programming Python, Second Edition now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.