TemporaryIOBackend

class sherpa.astro.io.TemporaryIOBackend(new_backend: str)

Bases: AbstractContextManager

Set the Sherpa I/O backend as a context, e.g. for a single operation

Parameters:

new_backendstr

Name of a known Sherpa IO backend.

Examples

Temporarily set a different backend and print out its name. Of course, for this example to be useful, we should not just print the name of the backend, but use it to read or write a datafile.

>>> from sherpa.astro import io
>>> with io.TemporaryIOBackend('dummy'):
...     print(io.backend.name)
dummy

Get a list of registered backends:

>>> from sherpa.astro import io
>>> io.IO_BACKENDS
{'dummy': <module 'sherpa.astro.io.dummy_backend' ...