In an earlier post I mentioned a bunch of Open Source web applications. Let's now focus on the ones written in Python using Flask the light-weight web framework.

• SOPython - source-code
• Webhooks for the Open edX GitHub and JIRA source code documentation
• CKAN The Open Source Data Portal Software
• Pagure is a light-weight git-centered forge based on pygit2
• Apache Airflow
• PyDigger - collecting information about Python packages

There might be other interesting projects listed in the Awesome Flask list.

Having access to the source code of applications that use Flask can help a lot learning how others develop such applications.