Table of contents:
CEF Python is a BSD-licensed open source project founded by Czarek Tomczak in 2012 and is based on Google Chromium and the CEF Framework projects. The Chromium project focuses mainly on Google Chrome application development, while CEF focuses on facilitating embedded browser use cases in third-party applications. Lots of applications use CEF control, there are more than 100 million CEF instances installed around the world. Examples of embedding Chrome browser are available for many popular GUI toolkits including: wxPython, PyGTK, PyQt, PySide, Kivy, Panda3D and PyGame/PyOpenGL.
There are many use cases for CEF. You can embed a web browser control based on Chromium with great HTML 5 support. You can use it to create a HTML 5 based GUI in an application, this can act as a replacement for standard GUI toolkits such as wxWidgets, Qt or GTK. In such case to communicate between Python<>Javascript use javascript bindings or embed an internal web server and talk using http requests. You can render web content off-screen in applications that use custom drawing frameworks. You can use it for automated testing of existing applications. You can use it for web scraping or as a web crawler, or other kind of internet bots.
You can install with pip. On Linux pip 8.1+ is required. You can also download packages for offline installation available on the GitHub Releases pages.
pip install cefpython3==57.0
See the Tutorial.md file.
See the Examples-README.md file.
- Ask questions, report problems and issues on the Forum
- Supported examples are listed in the Examples-README.md file
- Documentation is in the docs/ directory:
- API reference is in the api/ directory:
- Additional documentation is available in Issues labelled Knowledge Base
- To search documentation use GitHub "This repository" search at the top. To narrow results to documentation only select "Markdown" in the right pane.
- Wiki pages are deprecated and for v31 only
Information on supported platforms, python versions, architectures and requirements. If you want to support old operating systems then choose the v31 release.
Latest release
| OS | Py2 | Py3 | 32bit | 64bit | Requirements |
|---|---|---|---|---|---|
| Windows | 2.7 | 3.4 / 3.5 / 3.6 | Yes | Yes | Windows 7+ |
| Linux | 2.7 | 3.4 / 3.5 / 3.6 | Yes | Yes | Debian 7+ / Ubuntu 12.04+ |
| Mac | 2.7 | 3.4 / 3.5 / 3.6 | No | Yes | MacOS 10.9+ |
These platforms are not supported yet:
- ARM - see Issue #267
- Android - see Issue #307
v31 release
| OS | Py2 | Py3 | 32bit | 64bit | Requirements |
|---|---|---|---|---|---|
| Windows | 2.7 | No | Yes | Yes | Windows XP+ |
| Linux | 2.7 | No | Yes | Yes | Debian 7+ / Ubuntu 12.04+ |
| Mac | 2.7 | No | Yes | Yes | MacOS 10.7+ |
Additional information for v31.2 release:
- On Windows/Mac you can install with command:
pip install cefpython3==31.2 - Downloads are available on wiki pages and on GitHub Releases tagged v31.2.
- Documentation is on wiki pages
- API reference is available in revision 169a1b2
If you would like to support general CEF Python development efforts by making a donation please click the Paypal Donate button:
If you would like to see some feature implemented you can make a comment about that when making a donation. It will give it a higher priority.
If you are interested in sponsorship opportunities please contact Czarek directly.
- Many thanks to ClearChat Inc. for sponsoring the v55/v56 releases for all platforms
- Thanks to JetBrains for providing an Open Source license for PyCharm
- Thanks to those who have made a Paypal donation: Rentouch GmbH, Walter Purvis, Rokas Stupuras, Alex Rattray, Greg Kacy, Paul Korzhyk
- Lots of thanks goes to Cyan Inc. for sponsoring this project for a long time, making CEF Python 3 mature
- Thanks to those who have donated their time through code contributions, they are listed in the Authors file
- Thanks to Adam Duston for donating a Macbook to aid the development of Mac port
- Thanks to Rentouch GmbH for sponsoring the development of the off-screen rendering support
- Thanks to Thomas Wusatiuk for sponsoring the development of the web response reading features
- cefpython module
- ApplicationSettings dictionary
- BrowserSettings dictionary
- CommandLineSwitches dictionary
- Browser object
- Callback object
- Cookie class
- CookieManager class
- DpiAware class (Win)
- DragData object
- Frame object
- Image object
- JavascriptBindings class
- JavascriptCallback object
- PaintBuffer object
- Request class
- Response object
- WebPluginInfo object
- WebRequest class
- WindowInfo class
- WindowUtils class
- DisplayHandler
- DownloadHandler
- FocusHandler
- JavascriptDialogHandler
- KeyboardHandler
- LifespanHandler
- LoadHandler
- RenderHandler
- RequestHandler
- ResourceHandler
- V8ContextHandler
- CookieVisitor interface
- StringVisitor interface
- WebRequestClient interface
- Application settings
- accept_language_list
- auto_zooming
- background_color
- browser_subprocess_path
- cache_path
- command_line_args_disabled
- context_menu
- downloads_enabled
- external_message_pump
- framework_dir_path
- ignore_certificate_errors
- javascript_flags
- locale
- locales_dir_path
- debug
- log_file
- log_severity
- multi_threaded_message_loop
- net_security_expiration_enabled
- pack_loading_disabled
- persist_session_cookies
- persist_user_preferences
- product_version
- remote_debugging_port
- resources_dir_path
- single_process
- string_encoding
- uncaught_exception_stack_size
- unique_request_context_per_browser
- user_agent
- user_data_path
- windowless_rendering_enabled
- Browser (object)
- AddWordToDictionary
- CanGoBack
- CanGoForward
- CloseBrowser
- CloseDevTools
- DragTargetDragEnter
- DragTargetDragOver
- DragTargetDragLeave
- DragTargetDrop
- DragSourceEndedAt
- DragSourceSystemDragEnded
- ExecuteFunction
- ExecuteJavascript
- Find
- GetClientCallback
- GetClientCallbacksDict
- GetFocusedFrame
- GetFrame
- GetFrameByIdentifier
- GetFrames
- GetFrameCount
- GetFrameIdentifiers
- GetFrameNames
- GetJavascriptBindings
- GetMainFrame
- GetNSTextInputContext
- GetOpenerWindowHandle
- GetOuterWindowHandle
- GetUrl
- GetUserData
- GetWindowHandle
- GetIdentifier
- GetZoomLevel
- GoBack
- GoForward
- HandleKeyEventAfterTextInputClient
- HandleKeyEventBeforeTextInputClient
- HasDocument
- IsFullscreen
- IsLoading
- IsMouseCursorChangeDisabled
- IsPopup
- IsWindowRenderingDisabled
- LoadUrl
- Navigate
- NotifyMoveOrResizeStarted
- NotifyScreenInfoChanged
- ParentWindowWillClose
- Reload
- ReloadIgnoreCache
- ReplaceMisspelling
- SetBounds
- SendKeyEvent
- SendMouseClickEvent
- SendMouseMoveEvent
- SendMouseWheelEvent
- SendFocusEvent
- SendCaptureLostEvent
- SetClientCallback
- SetClientHandler
- SetFocus
- SetMouseCursorChangeDisabled
- SetJavascriptBindings
- SetUserData
- SetZoomLevel
- ShowDevTools
- StartDownload
- StopLoad
- StopFinding
- ToggleFullscreen
- TryCloseBrowser
- WasResized
- WasHidden
- Browser settings
- Font settings
- accept_language_list
- application_cache_disabled
- background_color
- databases_disabled
- default_encoding
- dom_paste_disabled
- file_access_from_file_urls_allowed
- image_load_disabled
- javascript_disabled
- javascript_open_windows_disallowed
- javascript_close_windows_disallowed
- javascript_access_clipboard_disallowed
- local_storage_disabled
- plugins_disabled
- remote_fonts
- shrink_standalone_images_to_fit
- tab_to_links_disabled
- text_area_resize_disabled
- universal_access_from_file_urls_allowed
- user_style_sheet_location
- web_security_disabled
- webgl_disabled
- windowless_frame_rate
- Callback (object)
- cefpython
- Command line switches
- Cookie (class)
- CookieManager (class)
- CookieVisitor (interface)
- DisplayHandler (interface)
- DownloadHandler
- DpiAware (class)
- DragData (object)
- FocusHandler (interface)
- Frame (object)
- Image (object)
- JavascriptBindings (class)
- JavascriptCallback (object)
- JavascriptDialogHandler (interface)
- KeyboardHandler (interface)
- LifespanHandler (interface)
- LoadHandler (interface)
- Network error
- ERR_NONE
- ERR_ABORTED
- ERR_ACCESS_DENIED
- ERR_ADDRESS_INVALID
- ERR_ADDRESS_UNREACHABLE
- ERR_CACHE_MISS
- ERR_CERT_AUTHORITY_INVALID
- ERR_CERT_COMMON_NAME_INVALID
- ERR_CERT_CONTAINS_ERRORS
- ERR_CERT_DATE_INVALID
- ERR_CERT_END
- ERR_CERT_INVALID
- ERR_CERT_NO_REVOCATION_MECHANISM
- ERR_CERT_REVOKED
- ERR_CERT_UNABLE_TO_CHECK_REVOCATION
- ERR_CONNECTION_ABORTED
- ERR_CONNECTION_CLOSED
- ERR_CONNECTION_FAILED
- ERR_CONNECTION_REFUSED
- ERR_CONNECTION_RESET
- ERR_DISALLOWED_URL_SCHEME
- ERR_EMPTY_RESPONSE
- ERR_FAILED
- ERR_FILE_NOT_FOUND
- ERR_FILE_TOO_BIG
- ERR_INSECURE_RESPONSE
- ERR_INTERNET_DISCONNECTED
- ERR_INVALID_ARGUMENT
- ERR_INVALID_CHUNKED_ENCODING
- ERR_INVALID_HANDLE
- ERR_INVALID_RESPONSE
- ERR_INVALID_URL
- ERR_METHOD_NOT_SUPPORTED
- ERR_NAME_NOT_RESOLVED
- ERR_NO_SSL_VERSIONS_ENABLED
- ERR_NOT_IMPLEMENTED
- ERR_RESPONSE_HEADERS_TOO_BIG
- ERR_SSL_CLIENT_AUTH_CERT_NEEDED
- ERR_SSL_PROTOCOL_ERROR
- ERR_SSL_RENEGOTIATION_REQUESTED
- ERR_SSL_VERSION_OR_CIPHER_MISMATCH
- ERR_TIMED_OUT
- ERR_TOO_MANY_REDIRECTS
- ERR_TUNNEL_CONNECTION_FAILED
- ERR_UNEXPECTED
- ERR_UNEXPECTED_PROXY_AUTH
- ERR_UNKNOWN_URL_SCHEME
- ERR_UNSAFE_PORT
- ERR_UNSAFE_REDIRECT
- PaintBuffer (object)
- RenderHandler (interface)
- Request (class)
- RequestHandler (interface)
- ResourceHandler (interface)
- Response (object)
- StringVisitor (interface)
- V8ContextHandler (interface)
- Virtual Key codes
- WebPluginInfo (object)
- WebRequest (class)
- WebRequestClient (interface)
- WindowInfo (class)
- WindowUtils (class)