[AstroPy] Bad time file being downloaded

Tue Mar 29 12:43:36 EDT 2022

Hi Ramiro and others,

I tried reinstalling astropy but no luck. For now, I’ve got a semi-fix because it was working on another machine (which had obviously downloaded from a different site) so I copied my .astropy directory across, but this is ony short-term, and doesn’t deal with the underlying problem that astropy is downloading essentially a 404 page and so throwing an error - that there doesn’t seem to be a way to avoid.

Is there no way to set preferences or blacklist a given URL? I don’t know the intimate details of astropy, but it downloads sites.json, so I assume from this it selects where to get the IERS stuff from(?) So ideally I’d like to be able to say, “Don’t use that site.” Actually - more ideally, the back-end of astropy should realise when the file it has downloaded is not the expected file and switch to a different source — I guess maybe I should report this as a bug on the git repo?

Phil

On 29 Mar 2022, at 17:18, Miro Saide <mirosaide at gmail.com<mailto:mirosaide at gmail.com>> wrote:

Hi Phil,

I had a similar error but running something different,

I uninstalled Astropy and reinstalled it using: pip3 install astropy[all], I am running it on ubuntu 20.04.4 LTS...

And Finally, it worked.

Ramiro Caisse Saide
MPhil Research Student
Department of Physics
University of Mauritius
Contact Number: +258 845672884
Email: ramiro.saide at umail.uom.mu<mailto:ramiro.saide at umail.uom.mu>

Phil Evans <pae9 at leicester.ac.uk<mailto:pae9 at leicester.ac.uk>> escreveu no dia terça, 29/03/2022 à(s) 10:51:
Hi everyone

A whole bunch of my codes have suddenly started failing, on astropy.time.light_travel_time

After much debugging I've found the issue: the code downloads a URL:  ftp://anonymous:mail%40astropy.org@gdc.cddis.eosdis.nasa.gov/pub/products/iers/finals2000A.all<https://eur03.safelinks.protection.outlook.com/?url=ftp%3A%2F%2Fanonymous%3Amail%2540astropy.org%40gdc.cddis.eosdis.nasa.gov%2Fpub%2Fproducts%2Fiers%2Ffinals2000A.all&data=04%7C01%7Cpae9%40leicester.ac.uk%7C2c668a210d8d4ecaa54508da119fc4e2%7Caebecd6a31d44b0195ce8274afe853d9%7C0%7C1%7C637841675176908418%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=KOhw7fB5%2BpLJU%2FreeajsgDheGVR7XJ%2FlgbGgDswsSg4%3D&reserved=0> and presumably expects to find leap seconds or something. Instead it gets HTML saying "This site is currently unavailable".

Ultimately, I get the error:

ValueError: Column year failed to convert: invalid literal for int() with base 10: '<!'

Obviously from the <!DOCTYPE in the HTML page.

This is causing me major headaches, as I have some pretty critical scripts affected. Is there an easy solution, eg. for me to blacklist the above URL or something?

Thanks

Phil

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Phil Evans,
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University of Leicester

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Phil Evans,
Swift Development Scientist & Athena W-ISC Technical Lead
X-ray and Observational Astronomy Group,
University of Leicester

Tel: +44 (0)116 252 5059
Mobile: +44 (0)7780 980240 (work)
Mobile: +44 (0)7974 977723 (personal)

Office: G49 Physics Building

pae9 at leicester.ac.uk<mailto:pae9 at leicester.ac.uk>

http://www.star.le.ac.uk/~pae9
http://www.swift.ac.uk

Follow me as a Swift scientist on Twitter: @swift_phil
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