spacepy.pycdf.zAttr

class spacepy.pycdf.zAttr(cdf_file, attr_name, create=False)[source]

zAttribute for zVariables within a CDF.

Warning

Because zAttributes are shared across all variables in a CDF, directly manipulating them may have unexpected consequences. It is safest to operate on zEntries via zAttrList.

Note

When accessing a zAttr, pyCDF exposes only the zEntry corresponding to the associated zVariable.

See also

Attr
__init__(cdf_file, attr_name, create=False)

Initialize this attribute

Parameters:
cdf_fileCDF

CDF file containing this attribute

attr_namestr

Name of this attribute

createbool

True to create attribute, False to look up existing

Methods

append(index, data)

Add entry to end of attribute list

insert(index, data)

Insert entry at particular index number

Attributes

ATTR_MAXENTRY_
ATTR_NUMENTRIES_
ENTRY_
ENTRY_DATASPEC_
ENTRY_DATATYPE_
ENTRY_DATA_
ENTRY_EXISTENCE_
ENTRY_NUMELEMS_
SCOPE
append(index, data)[source]

Add entry to end of attribute list

Since there can only be one zEntry per zAttr, this cannot be implemented.

Raises:
NotImplementedErroralways
insert(index, data)[source]

Insert entry at particular index number

Since there can only be one zEntry per zAttr, this cannot be implemented.

Raises:
NotImplementedErroralways
ATTR_MAXENTRY_ = c_long(93)
ATTR_NUMENTRIES_ = c_long(94)
ENTRY_ = c_long(109)
ENTRY_DATASPEC_ = c_long(114)
ENTRY_DATATYPE_ = c_long(112)
ENTRY_DATA_ = c_long(115)
ENTRY_EXISTENCE_ = c_long(111)
ENTRY_NUMELEMS_ = c_long(113)
SCOPE = c_long(2)