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SPECTRE's chief purpose is the manipulation of single-order spectra, and it performs many of the tasks contained in such IRAF routines as "splot" and "rv". It is not meant to replace the much more general capabilities of IRAF, but does some functions in a manner that some might find useful. A brief list of SPECTRE tasks are:
PyVO provides access to remote data and services of the Virtual observatory (VO) using Python. It allows archive searches for data of a particular type or related to a particular topic and query submissions to obtain data to a particular archive to download selected data products. PyVO supports querying the VAO registry; simple data access services (DAL) to access images (SIA), source catalog records (Cone Search), spectra (SSA), and spectral line emission/absorption data (SLAP); and object name resolution (for converting names of objects in the sky into positions). PyVO requires both AstroPy and NumPy.
PyVO is a package providing access to remote data and services of the Virtual observatory (VO) using Python. It takes advantage VO standards to interface to tens of thousands of catalogs, data archives, information services, and analysis tools. PyVO is built on top of Astopy (and numpy).
The VO protocols support by pyVO include the Table Access Protocol TAP, the Simple Image and Spectra Access Protocols (SIAP, SSAP), Simple Cone Search (SCS), the VO services interface VOSI, and Datalink.