[AstroPy] [ANN] PyFITS 3.0.9 and 3.1.0 Released
Wed Aug 8 16:45:59 CDT 2012
I'm pleased to announce the releases of PyFITS 3.0.9 and 3.1.0. This is
probably the first time for the PyFITS project to do a dual release.
Version 3.0.9 is a minor bug fix release building on 3.0.8 and the rest
of the 3.0.x series. The changelog for 3.0.9 can be read here:
Version 3.1.0 has been almost a year in the making. It incorporates all
the bug fixes from 3.0.9 and previous 3.0.x releases, as well as more
bug fixes, and many new features and API changes. It should be noted
for users of STSCI_PYTHON that this is the same version of PyFITS that
is included in the recent STSCI_PYTHON 2.13 release.
The reason for this dual release is that 3.1 contains enough changes
that many users may not wish to switch to it right away for production
use. The biggest differences include a new Header API, and the use of
mmap by default for reading FITS data from disk. I strongly recommend
testing all your software with 3.1 before using it in production. Also
be sure to read the full release notes at
The new Header API is mostly compatible with existing code, but there
are a few corner cases where it may not be (most notably the
Header.keys() method, and the behavior of slicing Headers). A detailed
description of the Header changes can be read at
The 3.0.x series will continue to receive support in the form of bug fix
releases for some time to come before ending support and switching fully
over to the 3.1.x series.
(Note: PyFITS 3.0.9 was actually released via PyPI a few days earlier,
but I fell ill and didn't have time to finish the 3.1 release.)
Installation Notes for PyFITS 3.1
For several versions now PyFITS has relied on a setup of installation
utilities in a package called stsci.distutils
(http://pypi.python.org/pypi/stsci.distutils). Normally, when
installing PyFITS, stsci.distutils will automatically be downloaded and
bootstrapped to your Python interpreter, so it's not necessary to take
However, if you have stsci.distutils installed into your site-packages,
it may be necessary to upgrade it to install PyFITS 3.1, which requires
stsci.distutils >= 0.3. In particular, if you get an "VersionConflict"
error when trying to install PyFITS, this is probably because you need
to update stsci.distutils first. This can be done with easy_install or pip:
$ easy_install -U "stsci.distutils>=0.3"
$ pip install --upgrade "stsci.distutils>=0.3"
Otherwise, installation of pyfits is the same, using easy_install or
pip, or by manually downloading and unpacking the source and running
`python setup.py install`.
At the time of writing, the STScI website for PyFITS has not been
updated (still waiting on IT to push the updated pages to production).
In the meantime PyFITS 3.0.9 can still by downloaded from PyPI:
Thanks, and let me know if you have any issues.
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