get_key_names

Synopsis

Return an array of the keywords in a crate.

get_key_names(crate)

Description

• crate - input crate

The get_key_names command retrieves the keywords in the crate as an array of strings. The get_keyval() routine can be used to read the value of a single keyword ("ahelp get_keyval").

Example

>>> cr = read_file("evt2.fits")
>>> keys = get_key_names(cr)
>>> print(keys[10:15])
['DATE-OBS' 'DATE-END' 'TIMESYS' 'MJDREF' 'TIMEZERO']

Retrieve the keywords from the crate "cr", then print out five elements of the array.

Bugs

See the bug pages on the CIAO website for an up-to-date listing of known bugs.

Refer to the CIAO bug pages for an up-to-date listing of known issues.

See Also

contrib

add_keyval, set_key

crates

add_key, copy_piximgvals, cratekey, delete_key, get_axis_transform, get_col, get_col_names, get_colvals, get_crate_item_type, get_crate_type, get_key, get_keyval, get_number_cols, get_number_rows, get_piximg, get_piximg_shape, get_piximgvals, get_transform, get_transform_matrix, key_exists, set_keyval