astropy 5.0

ParametersReturns
getval(filename, keyword, *args, **kwargs)

Parameters

filename : path-like or file-like

Name of the FITS file, or file object (if opened, mode must be one of the following rb, rb+, or ab+).

keyword : str

Keyword name

ext, extname, extver :

The rest of the arguments are for extension specification. See getdata for explanations/examples.

kwargs :

Any additional keyword arguments to be passed to astropy.io.fits.open . Note: This function automatically specifies do_not_scale_image_data = True when opening the file so that values can be retrieved from the unmodified header.

Returns

keyword value : str, int, or float

Get a keyword's value from a header in a FITS file.

Examples

See :

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them


File: /astropy/io/fits/convenience.py#260
type: <class 'function'>
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