use_center isn't a known keyword

[meeuw]

use_center is documented at: http://rhodesmill.org/pyephem/rise-set.html#computing-twilight

but it isn't included in pyephem-3.7.3.4 (a recursive grep doesn't return any matches)

[Brandon Rhodes (brandon-rhodes)]

The documentation is for current version 3.7.4.1, which I realized is *not* the version pointed at by the download links at the top of the web page. Why did I not update the links? Because I was not able to compile the new version for Windows Python 2.4 and 2.5, and have not had the time to investigate why my Windows compile environment is not working.

But to help out you and other uses who — quite reasonably! — expect the version you download to match the documentation, I have updated the download links to point at the current version for the source code and Python 2.6/2.7 Windows installers, and to the older version of PyEphem for Python 2.4/2.5 Windows installers. Let me know if installing the latest version resolves this problem for you!

[meeuw (dick-mrns)]

Thanks for your reply, I felt like an ass when I found out I wasn't using the latest version so I've invalidated the bug report.
The latest version works just fine, thanks for this great library!

[Brandon Rhodes (brandon-rhodes)]

No, you have no reason to feel like an ass — if the PyEphem page had not been updated with links to the new version, then lots of people have probably been continuing to run the old version. Thanks for reminding me so that I could fix it!