bundles / astropy latest / astropy / io / fits / header / Header / _update
function
astropy.io.fits.header:Header._update
source: /astropy/io/fits/header.py:1633
Signature
def _update(self, card)Summary
The real update code. If keyword already exists, its value and/or comment will be updated. Otherwise a new card will be appended.
Extended Summary
This will not create a duplicate keyword except in the case of commentary cards. The only other way to force creation of a duplicate is to use the insert(), append(), or extend() methods.
Aliases
astropy.io.fits.Header._update