To ease the process of getting started, Pyramid provides scaffolds that generate sample projects from templates in Pyramid and Pyramid add-ons.
We're going to cover a lot in this tutorial, focusing on one topic at a time and writing everything from scratch. As a warmup, though, it sure would be nice to see some pixels on a screen.
Like other web development frameworks, Pyramid provides a number of "scaffolds" that generate working Python, template, and CSS code for sample applications. In this step we'll use a built-in scaffold to let us preview a Pyramid application, before starting from scratch on Step 1.
Pyramid's pcreate command can list the available scaffolds:
$ $VENV/bin/pcreate --list Available scaffolds: alchemy: Pyramid SQLAlchemy project using url dispatch starter: Pyramid starter project zodb: Pyramid ZODB project using traversal
Tell pcreate to use the starter scaffold to make our project:
$ $VENV/bin/pcreate --scaffold starter scaffolds
Use normal Python development to setup our project for development:
$ cd scaffolds $ $VENV/bin/python setup.py develop
Startup the application by pointing Pyramid's pserve command at the project's (generated) configuration file:
$ $VENV/bin/pserve development.ini --reload
On startup, pserve logs some output:
Starting subprocess with file monitor Starting server in PID 72213. Starting HTTP server on http://0.0.0.0:6543
Open http://localhost:6543/ in your browser.
Rather than starting from scratch, pcreate can make getting a Python project containing a Pyramid application a quick matter. Pyramid ships with a few scaffolds. But installing a Pyramid add-on can give you new scaffolds from that add-on.
pserve is Pyramid's application runner, separating operational details from your code. When you install Pyramid, a small command program called pserve is written to your bin directory. This program is an executable Python module. It is passed a configuration file (in this case, development.ini.)