dump¶

asdf.dump(tree, fp, *, version=None, extensions=None, all_array_storage=NotSet, all_array_compression=NotSet, compression_kwargs=NotSet, pad_blocks=False, custom_schema=None)[source]¶

Write a tree to an ASDF file.

Parameters:

treeobject: The tree to dump.
fpstr or file-like object: A file-like object to write the ASDF data to.
versionstr, optional: Version of the ASDF core schemas to use. If not specified, the default version will be used.
extensionsobject, optional: Additional extensions to use when reading and writing the file. May be an asdf.extension.Extension or a list of extensions.
all_array_storagestring, optional: If provided, override the array storage type of all blocks.
all_array_compressionstring, optional: If provided, override the array compression type of all blocks.
compression_kwargsdict, optional: If provided, override the compression parameters of all blocks.
pad_blocksbool, optional: If provided, pad all blocks to the nearest multiple of the block size.
custom_schemastr, optional: Path to a custom schema file that will be used for a secondary validation pass. This can be used to ensure that particular ASDF files follow custom conventions beyond those enforced by the specification.