Field#
- class ctapipe.core.Field(default=None, description='', unit=None, ucd=None, dtype=None, type=None, ndim=None, allow_none=True, max_length=None, default_factory=None)[source]#
Bases:
object
Class for storing data in a
Container
.- Parameters:
- default
Default value of the item. This will be set when the
Container
is constructed, as well as whenContainer.reset
is called. This should only be used for immutable values. For mutable values, usedefault_factory
instead.- descriptionstr
Help text associated with the item
- unitstr or astropy.units.core.UnitBase
unit to convert to when writing output, or None for no conversion
- ucdstr
universal content descriptor (see Virtual Observatory standards)
- typetype
expected type of value
- dtypestr or np.dtype
expected data type of the value, None to ignore in validation. Means value is expected to be a numpy array or astropy quantity
- ndimint or None
expected dimensionality of the data, for arrays, None to ignore
- allow_nonebool
if the value of None is given to this Field, skip validation
- max_lenint
if type is str, max_len is the maximum number of bytes of the utf-8 encoded string to be used.
- default_factoryCallable
A callable providing a fresh instance as default value.
Methods Summary
validate
(value)check that a given value is appropriate for this Field
Methods Documentation