查看“Astropy”的源代码

== astropy.io.fits ==

 >>> hdulist = fits.open('input.fits')
 >>> hdulist.info()

*each element of an HDUList is an HDU object with .header and .data attributes, which can be used to access the header and data portions of the HDU.
 >>> hdulist[0].header['targname']

*To see the entire header as it appears in the FITS file (with the END card and padding stripped), simply enter the header object by itself, or print(repr(header)):
*It’s also possible to view a slice of the header:
 >>> header[:2]
*Another way to either update an existing card or append a new one is to use the Header.set() method:
 >>> prihdr.set('observer', 'Edwin Hubble')