toga 0.2.2

A Python native, OS native GUI toolkit.

A Python native, OS native GUI toolkit.

Quickstart

To get a demonstration of the capabilities of Toga, run the following:

$ pip install toga-demo
$ toga-demo

This will pop up a GUI window with some sample widgets.

Prerequisites

Toga has some minimum requirements:

• If you’re on macOS, you need to be on 10.7 (Lion) or newer.

• If you’re on Linux, you need to have GTK+ 3.4 or later. This is the version that ships starting with Ubuntu 12.04 and Fedora 17.

• If you want to use the WebView widget, you’ll also need to have WebKit, plus the GI bindings to WebKit installed.

  • For Ubuntu that’s provided by the (libwebkitgtk-3.0-0) and (gir1.2-webkit-3.0) packages.

  • For Fedora it’s all provided in the (webkitgtk3) package.

If these requirements aren’t met, Toga either won’t work at all, or won’t have full functionality.

Problems with source installs

Internally, Toga is comprised of a number of subpackages - one for each platform it supports. If you install using wheels, the install process will correctly identify the required packages and install them. However, if you install from source using pip, there is a known bug in pip that causes dependencies to not be installed. It may be necessary to manually install the following pre-requisites:

• OS X: pip install toga-cocoa colosseum rubicon-objc

• Linux: pip install toga-gtk colosseum

• Win32: pip install toga-win32 colosseum

Problems using virtualenv under Linux

When running under Linux, Toga uses the system native python GTK+3 bindings for display purposes. However, if you’re using a --no-site-packages virtualenv (which is the default), the Python bindings for GTK won’t be in your PYTHONPATH.

If you install Toga in a virtual environment, Toga will attempt to automatically fix the problem; however, if this fails, you’ll need to apply the fix manually. To make the system GTK+ bindings available to your virtualenv, symlink the gi module from the system dist-packages directory into your virtualenv’s site-packages:

For an Ubuntu 14.04 system::

    $ cd $VIRTUAL_ENV/lib/python3.4/site-packages
    $ ln -si /usr/lib/python3/dist-packages/gi

For a Ubuntu 16.04 system::

    $ cd $VIRTUAL_ENV/lib/python3.5/site-packages
    $ ln -si /usr/lib/python3/dist-packages/gi

For a Fedora 64bit system::

    $ cd $VIRTUAL_ENV/lib/python3.5/site-packages
    $ ln -si /usr/lib64/python3.5/site-packages/gi/

Documentation

Documentation for Toga can be found on Read The Docs.

Related projects

This package is a top level package. It depends on the use of platform-specific backends to provide real functionality:

• toga-cocoa: for OS/X

• toga-gtk: GTK+ backend for Linux desktops

• toga-win32: for Windows desktops (limited support)

• toga-iOS: for iOS devices (iPhone, iPad, iPod)

• toga-android: for Android devices (limited support)

Community

Toga is part of the BeeWare suite. You can talk to the community through:

• @pybeeware on Twitter

• The BeeWare Users Mailing list, for questions about how to use the BeeWare suite.

• The BeeWare Developers Mailing list, for discussing the development of new features in the BeeWare suite, and ideas for new tools for the suite.

Contributing

If you experience problems with Toga, log them on GitHub. If you want to contribute code, please fork the code and submit a pull request.