Leo

Leo is an outlining editor for programmers, a general data management environment and a project manager & browser.

Features:

• A general data management environment.
• Leo shows user-created relationships among any kind of data:
• computer programs, web sites, etc.
• Leo shows multiple views of data within a single outline.
• An outlining editor for programmers.
• Leo supports optional noweb and CWEB markup.
• A flexible browser for projects, programs, classes or any other data.
• A project manager.
• Portable. Leo runs on Windows, Linux and MacOS X.
• 100% pure Python.
• Fully scriptable using Python Leo's outline files are XML format.
• Open Software, distributed under the Python License.

What is new in this release:

• Cached external files *greatly* reduces the time to load .leo files.
• Leo now features a modern Qt interface by default. Leo's legacy Tk interface can also be used.
• New --config, --file and --gui command-line options.
• Leo tests syntax of .py files when saving them.
• Leo can now open any kind of file into @edit nodes.
• @auto-rst nodes allow easy editing of reStructuredText files.
• Properties of commanders, positions and nodes simplify programming.
• Improved Leo's unit testing framework.
• Leo now requires Python 2.5 or later.
• Dozens of small improvements and bug fixes.

What is new in version 4.6 Beta 2:

• Cached external files *greatly* reduces the time to load .leo files.
• Leo now features a modern Qt interface by default. Leo's legacy Tk interface can also be used.
• New --config, --file and --gui command-line options.
• Leo tests syntax of .py files when saving them.
• Leo can now open any kind of file into @edit nodes.
• @auto-rst nodes support "round-tripping" of reStructuredText files.
• Properties of commanders, positions and nodes simplify programming.
• Improved Leo's unit testing framework.
• Leo now requires Python 2.4 or later.
• Dozens of small improvements and bug fixes.

What is new in version 4.6 Beta 1:

• Leo now requires Python 2.4 or later.
• A new qt gui plugin, supporting Qt's look and feel.
• New --config --file and --gui command-line options.
• Dozens of small improvements and bug fixes.

What is new in version 4.5 RC2:

• Minor changes to how Leo computes home directory, and related docs.

What is new in version 4.5 RC1:

• Full support for @shadow files in Leo's core.
• Major improvements to Leo's key binding code.
• The beginning of usable vim-like bindings.
• uA's may now be associated with vnodes in @thin and @shadow files.
• Several magor reorganizations of Leo's code: including sax-based parsing, support for the Graph world (unified nodes), and simplified drawing code.
• Leo is now an installable package.
• Prepared code to be ready for Python 3.0.
• Many small improvements and bug fixes.

Requirements:

• Python