1. About Mastering Plone

Mastering Plone Development Training is both: an online training and a handout for on-site trainings. We address developers. You are interested in best practice guides and want to learn the why and where, so read on!

1.1. The beginning and the continuation

This training was initially started as a Plone Classic training and evolved now to a roundtrip on both: Plone Classic HOWTOs, same for the ReactJS frontend and the interplay between backend and frontend.

This training is published on training.plone.org.
The Mastering Plone Development Training is Open Source on GitHub. We update the training currently to teach the best practices. You are welcome to contribute and give feedback on GitHub issues.

Thank you for reading and your charity with non native speakers / writers.

1.2. Upcoming Trainings

Plone Conference 2021, end of the year

If you want to have an on-site training or want to attend a public training please ask for trainings on https://community.plone.org.

1.3. Previous Trainings

The Mastering Plone Training was so far held publicly at the following occasions:

1.4. Trainers

The following trainers have given trainings based on Mastering Plone:

Philip Bauer

Philip Bauer is a web developer from Munich who fell in love with Plone in 2005 and since then works almost exclusively with Plone. A historian by education he drifted towards creating websites in the 90’s and founded the company Starzel.de in 2000. He is a member of the Plone foundation, loves teaching and is dedicated to Open Source. Among other Plone-related projects he started creating the Mastering Plone Training so that everyone can become a Plone-Developer.

Katja Süss

If not gardening she is developing with Python, Svelte and ReactJS. Katja lifted the Plone Classic Training to Plone 6 level.

Patrick Gerken

Patrick Gerken works with Python since 2002. He started working with pure Zope applications and now develops mainly with Plone, Pyramid and JavaScript as well as doing what is called DevOps. He works at Zumtobel Group.

Steve McMahon

Steve McMahon is a long-time Plone community member, contributor and trainer. He is the creator of PloneFormGen and maintainer of the Unified installer. Steve also wrote several chapters of Practical Plone and is an experienced speaker and instructor.

Steffen Lindner

Steffen Lindner started developing Plone in 2006. He worked on small Plone sites and also with huge intranet sites. As Open Source / Free Software developer he joined the Plone core developer team 2011 and works at Starzel.de.

Fulvio Casali

Fulvio Casali has been working almost exclusively with Plone since 2008. He struggled for years to find his way around the source code of Plone when there was no documentation and no trainings, and feels passionate about helping users and developers become proficient.

He loves participating in Plone community events, and organized two strategic Plone sprints on the northwest coast of the USA and helped galvanized the developer community there.

Johannes Raggam

Johannes Raggam from Graz/Austria works most of the time with a technology stack based around Python, Plone, Pyramid and JavaScript. As an active Open Source / Free Software developer he believes in the power of collaborative work.

He is a BlueDynamics Alliance Partner and Plone Core Contributor since 2009, a member of the Plone Framework Team since 2012 and Plone Foundation member.

Franco Pellegrini

Franco Pellegrini is a software developer from Cordoba, Argentina. He started developing Plone in 2005 in a small software company, and as an independent contractor since 2011. He believes in free software philosophy, and so, he has been a Plone core developer since 2010 and Framework Team member since 2012.

Fred van Dijk

Fred, from Rotterdam the Netherlands, has been exposed to Plone early on as a user. In 2007 he joined Zest Software to work on and with Plone and Python web apps full time.

He can focus on the business side, helping users decide on which features are most valuable to develop or when to stick with standard functionality. He also gives training on using and administering the CMS. On the IT side he has plenty technical knowledge to work on code, system administration and do project management in a team of developers.

Leonardo Caballero

Leonardo J. Caballero G. of Maracaibo, Venezuela, is a Technical Director at Covantec R.L. and Conectivo C.A. Leonardo maintains the Spanish translations of more than 49 Plone Add-ons as well as Spanish-language documentation for Plone itself.

He has contributed several Plone Add-ons that are part of PloneGov. Currently serving the Plone Board as a Plone Ambassador, Leonardo has also served as an Advisory Board member and has spoken at or helped organize Plone and open-source events throughout South America.

1.5. Using the documentation for a training

Feel free to organize a training yourself. Please be so kind to contribute any bug fixes or enhancements you made to the documentation for your training.

The training is rendered using Sphinx and builds in two flavors:


The verbose version used for the online documentation and for the trainer. Build it in Sphinx with make html or use the online version.


An abbreviated version used for the projector during a training. It should use more bullet points than verbose text. Build it in Sphinx with make presentation.


By prefixing an indented block of text or code with .. only:: presentation you can control that this block is used for the presentation version only.

To hide a block from the presentation version use .. only:: not presentation

Content without a prefix will be included in both versions.

1.5.1. The readthedocs theme

We slightly tweaked the Read the Docs Theme in _static/custom.css so that it works better with projectors:

  • We start hiding the navigation bar much earlier so that it does not interfere with the text.

  • We enlarge the default width of the content-area.

1.5.2. Exercises

Some additional JavaScript shows hidden solutions for exercises by clicking.

Prepend the solution with this markup:

..  admonition:: Solution
    :class: toggle

Here is a full example

Exercise 1

Your mission, should you choose to accept it...

..  admonition:: This is the heading for the solution
    :class: toggle

    To save the world with only seconds to spare do the following:

    .. code-block:: python

        from plone import api

It will be rendered like this: Exercise 1

Your mission, should you choose to accept it…

This is the heading for the solution

To save the world with only seconds to spare do the following:

from plone import api

1.6. Building the documentation locally

1.6.1. Dependencies and new build

Please make sure that you have Enchant installed. This is needed for spell-checking.

Install Enchant on macOS:

brew install enchant

Install Enchant on Ubuntu:

sudo apt-get install enchant

To build the documentation follow these steps:

git clone https://github.com/plone/training.git
cd training
python -m venv .
source bin/activate

Now install dependencies and build.

pip install -r requirements.txt
make html

You can now open the output _build/html/index.html in your browser.

To build the presentation version use make presentation instead of make html. You can open the presentation at _build/presentation/index.html.

If you use macOS you can do:

open _build/html/index.html

In the case of Linux, Ubuntu for example you can do:

firefox _build/html/index.html

or with Chrome

google-chrome _build/html/index.html

All steps in short

git clone https://github.com/plone/training.git
cd training
python -m venv .
source bin/activate
pip install -r requirements.txt
make html

1.6.2. Update existing

git pull
source bin/activate
make html
open _build/html/index.html

1.6.3. Sync the browser while editing

To watch the changes in browser while editing you can use gulp.

Install once the gulp command line utility.

npm install --global gulp-cli

Install once the gulp project with

npm install

Run gulp when starting working on the training with


and see a browser window opening on http://localhost:3002/.

1.6.4. Technical set up to do before a training (as a trainer)

  • Prepare a mailserver for the user registration mail (See Configure a Mailserver)

  • If you do only a part of the training (Advanced) prepare a database with the steps of the previous sections. Be aware that the file- and blobstorage in the Vagrant box is here: /home/vagrant/var/ (not at the buildout path /vagrant/buildout/)

1.6.5. Upgrade the vagrant and buildout to a new Plone-version

cd plone_training_config
zip -r ../_static/plone_training_config.zip *

1.7. Train the trainer

If you are a trainer there is a special mini training about giving technical trainings. We really want this material to be used, re-used, expanded, and improved by Plone trainers world wide.

These chapters don’t contain any Plone specific advice. There’s background, theory, check lists, and tips for anyone trying to teach technical subjects.

Teachers Training

1.8. Contributing

Everyone is very welcome to contribute. Minor bug fixes can be pushed directly in the repository, bigger changes should made as pull-requests and discussed previously in tickets.

1.9. License

The Mastering Plone Training is licensed under a Creative Commons Attribution 4.0 International License.

Make sure you have filled out a Contributor Agreement.

If you haven’t filled out a Contributor Agreement, you can still contribute. Contact the Documentation team, for instance via the mailinglist or directly send a mail to plone-docs@lists.sourceforge.net

Basically, all we need is your written confirmation that you are agreeing your contribution can be under Creative Commons.

You can also add in a comment with your pull request “I, <full name>, agree to have this published under Creative Commons 4.0 International BY”.