All of these modules are contained within the top-level PyQt5 package.

Enginio Classes for accessing Qt Cloud Services (deprecated)
QAxContainer Classes for accessing ActiveX controls and COM objects
Qt A consolidation of other modules
Qt3DAnimation Classes that support animations in simulations
Qt3DCore The core classes to support near-realtime simulation systems
Qt3DExtras Pre-built elements for use with Qt3D
Qt3DInput Classes to handle user input when using Qt3D
Qt3DLogic Classes that enable frame synchronization
Qt3DRender Classes that enable 2D and 3D rendering
QtAndroidExtras Additional classes specific to Android
QtBluetooth Classes to support connectivity between Bluetooth enabled devices
QtChart Classes to support the creation of 2D charts
QtCore The core Qt classes
QtDBus Classes to support IPC using the D-Bus protocol
QtDataVisualization Classes to support the visualization of data in 3D
QtDesigner Classes to allow Qt Designer to be extended using Python
QtGui The core classes common to widget and OpenGL GUIs
QtHelp Classes for creating and viewing searchable documentation
QtLocation Classes for creating mapping applications
QtMacExtras Additional classes specific to macOS and iOS
QtMultimedia Classes for multimedia content, cameras and radios
QtMultimediaWidgets Provides additional multimedia related widgets and controls
QtNetwork The core network classes
QtNetworkAuth The network authorisation classes
QtNfc Classes to support connectivity between NFC enabled devices
QtOpenGL Classes for rendering OpenGL in traditional widgets (deprecated)
QtPositioning Classes for obtaining positioning information from satellite, wifi etc.
QtPrintSupport Classes to make printing easier and more portable
QtPurchasing Classes to support in-app purchasing from app stores
QtQml Classes for integrating with the QML language
QtQuick Classes for extending QML applications with Python code
QtQuickWidgets Classes for rendering a QML scene in traditional widgets
QtSensors Classes for accessing a system's hardware sensors
QtSerialPort Classes for accessing a system's serial ports
QtSql Classes for integrating with SQL databases
QtSvg Classes providing support for SVG
QtTest Support for unit testing of GUI applications
QtWebChannel Classes for peer-to-peer communication between Python and HTML/JavaScript
QtWebEngine Classes for integrating QML Web Engine objects with Python
QtWebEngineCore The core Web Engine classes
QtWebEngineWidgets A Chromium based web browser
QtWebKit A WebKit2 based web browser (deprecated)
QtWebKitWidgets A WebKit1 based web browser (deprecated)
QtWebSockets Classes that implement the WebSocket protocol
QtWidgets Classes for creating classic desktop-style UIs
QtWinExtras Additional classes specific to Windows
QtX11Extras Additional classes specific to X11
QtXml Classes for supporting SAX and DOM interfaces to XML
QtXmlPatterns Classes that support additional XML technologies.
uic Classes for handling the files created by Qt Designer