append(filename, data, header=None, checksum=False, verify=True, **kwargs)
If only data
is supplied, a minimal header is created.
File to write to. If opened, must be opened for update (rb+) unless it is a new file, then it must be opened for append (ab+). A file or GzipFile
object opened for update will be closed after return.
The new data used for appending.
The header associated with data
. If :None:None:`None`, an appropriate header will be created for the data object supplied.
When :None:None:`True` adds both DATASUM
and CHECKSUM
cards to the header of the HDU when written to the file.
When :None:None:`True`, the existing FITS file will be read in to verify it for correctness before appending. When :None:None:`False`, content is simply appended to the end of the file. Setting verify
to :None:None:`False` can be much faster.
Additional arguments are passed to:
Append the header/data to FITS file if filename exists, create if not.
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