GenericMap

class lsst.afw.typehandling.GenericMap(*args, **kwds)

Bases: object

An abstract Mapping for use when sharing a map between C++ and Python.

For compatibility with C++, GenericMap has the following restrictions:

  • all keys must be of the same type

  • values must be built-in types or subclasses of lsst.afw.typehandling.Storable. Almost any user-defined class in C++ or Python can have Storable as a mixin.

As a safety precaution, Storable objects that are added from C++ may be copied when you retrieve them from Python, making it impossible to modify them in-place. This issue does not affect objects that are added from Python, or objects that are always passed by shared_ptr in C++.

Attributes Summary

TEMPLATE_DEFAULTS

TEMPLATE_PARAMS

Methods Summary

items()

keys()

values()

Attributes Documentation

TEMPLATE_DEFAULTS = (None,)
TEMPLATE_PARAMS = ('dtype',)

Methods Documentation

items() → a set-like object providing a view on D's items
keys() → a set-like object providing a view on D's keys
values() → an object providing a view on D's values