Google App Engine
Use this dialog to enable Google App Engine support, configure settings, and specify your App Engine credentials for each of the projects opened in the same window.
Refer to the Creating, deploying, and launching applications on Google App Engine for more details on Google App Engine support in PyCharm.
This pane displays the list of projects, opened in the same window. The first project in the list is the primary project.
Google App Engine support pane
Enable Google App Engine support
Select this checkbox to enable Google App Engine support. If the checkbox is not selected, all the following fields become disabled.
Specify the path to the folder where the Google App Engine SDK is installed on your machine.