list_functions

sherpa.ui.list_functions(outfile=None, clobber=False)

Display the functions provided by Sherpa.

Unlike the other list_xxx commands, this does not return an array. Instead it acts like the show_xxx family of commands.

Parameters:

• outfile (str, optional) – If not given the results are displayed to the screen, otherwise it is taken to be the name of the file to write the results to.
• clobber (bool, optional) – If outfile is not None, then this flag controls whether an existing file can be overwritten (True) or if it raises an exception (False, the default setting).

Raises:

sherpa.utils.err.IOErr – If outfile already exists and clobber is False.

See also

get_functions()

Return the functions provided by Sherpa.

show_all()

Report the current state of the Sherpa session.

Notes

When outfile is None, the text is displayed via an external program to support paging of the information. The program used is determined by the PAGER environment variable. If PAGER is not found then ‘/usr/bin/more’ is used.