[SciPy-user] ANN: Python 2.4.3 Enthought Edition 1.1.0 alpha1

Rick Ratzel rlratzel at enthought.com
Thu Aug 3 17:32:07 CDT 2006

In keeping with the "release early, release often" mantra of the open source
community, Enthought is pleased to announce Python Enthought Edition Version
1.1.0 alpha1.

Information page: http://code.enthought.com/enthon/enstaller.shtml
Download link: 

About Python Enthought Edition 1.1.0 alpha1:

This alpha release of 1.1.0 Python Enthought Edition is the first Enthought 
distribution (and the first Python distribution that we know of) to use
individual egg packages (http://peak.telecommunity.com/DevCenter/PythonEggs)
rather than a monolithic .exe installer. 

Python Enthought Edition 1.1.0 alpha1 introduces the "Enstaller" application,
which manages selecting, downloading, and installing Python eggs. The initial
installer program installs the standard Python software and runs a small script,
which downloads, installs, and runs Enstaller. From within Enstaller, you can
select individual egg packages from Enthought's egg repository, or select the
"enthon-1.1.0" package, which installs everything listed in the 1.1.0 alpha1

Python 2.4.3, Enthought Edition 1.1.0 is available only for Windows for the 
alpha1 release.  It includes eggs for the following packages:

Scientific Python
and many more...

After installing Python Enthought Edition 1.1.0 alpha1, you can launch 
Enstaller again later, to upgrade, uninstall, inspect, or add new packages to 
your Python installation.

More information is available about this and all other open source software 
written or released by Enthought, Inc., at <http://code.enthought.com>.

A Note About the License
The Enstaller application, released under the same BSD2 Open Source License as
all other Enthought Open Source, is and will remain free.  Access to Enthought's
egg repository is free to all during the alpha and beta test phases, and will
remain free for individual and academic use.  After the official release of
Enstaller, commercial and government users will be asked to pay a nominal,
per-seat, annual fee if they'd like continued access to the egg repository (to
help defray the costs of maintaining the repository).  The Enstaller application
may be used to access other egg repositories (i.e. the Python Cheese Shop--see
release notes below), not just Enthought's repository.

1.1.0 alpha1 Release Notes
This release is early alpha and has several known bugs, as well as a long list
of features that have not yet been implemented.  Some of the more obvious ones
are listed below:

* An egg of the standard documents that are typically included in 
Python Enthought Edition releases is not yet available.

* An egg of the complete Enthought Tool Suite (ETS), a package typically 
available in Python Enthought Edition releases, is not yet available.  However 
a subset of the ETS that includes Traits and TraitsUI is installed with 

* The uninstall feature does not properly uninstall a package if it is in use 
by any other process, including Enstaller.

* In some cases, installing a package that is already installed causes errors.

* The metadata about an installed package might not display in the Enstaller
dialog box, in most cases because the installed package does not include
metadata. This issue will improve as Enthought enhances the eggs available in
the Enthought egg repository, 

* Packages that modify the system registry (typically, adding directories to 
the search PATH) require the user to log out and then log back in before the 
settings take effect.

* Changing the "find_links" preference, which allows you to add additional 
repositories to search for eggs, often causes a traceback inspector to appear.
You can safely close the inspector and add the new repository.

* Some packages that launch post-install scripts can display error messages 
if they fail for any reason, which can require manual intervention.  These 
errors are usually caused by inadequate permissions for creating or moving 

* Accessing the Cheese Shop repository takes a very long time, but we have
several enhancements underway to vastly improve this which will be in future
releases soon.  At the moment however, a bug prevents Enstaller from downloading
eggs from the Cheese Shop for install, and access to it with Enstaller is
limited to browsing only.  If you'd like to browse the Cheese Shop, enter
"http://python.org/pypi/" (the final '/' is required) in the "find_links" field
under Preferences.

* IPython may have problems when starting for the first time if a previous 
version of IPython was run on the system. If you see "WARNING: could not import
user config", either follow the directions that follow the warning, or delete
ipy_user_conf.py from the IPython directory.

* Some users report that older matplotlibrc files are not compatible with the 
version of matplotlib installed with this release. Please refer to the 
matplotlib mailing list <http://sourceforge.net/mail/?group_id=80706> for 
further help.

We are grateful to everyone who has helped test this release. If you'd like to 
contribute suggestions or report a bug, you can do so at 

Rick Ratzel - Enthought, Inc.
515 Congress Avenue, Suite 2100 - Austin, Texas 78701
512-536-1057 x229 - Fax: 512-536-1059

More information about the SciPy-user mailing list