Current File : //lib/python2.7/site-packages/kitchen/pycompat24/sets/__init__.pyo
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In python-2.4, a builtin :class:`set` type was added to python. This module
provides a function to emulate that on python-2.3 by using the :mod:`sets`
module.
:func:`set`
Create a set. If running on python 2.4+ this is the :class:`set`
constructor. If using python-2.3, it's :class:`sets.Set`.
:func:`frozenset`
Create a frozenset. If running on python2.4+ this is the
:class:`frozenset` constructor. If using python-2.3, it's
:class:`sets.ImmutableSet`.
.. versionchanged:: 0.2.0 API: kitchen.pycompat24 1.0.0
Added set and frozenset
i����Nt sett frozensetc C s: t t d � s t t _ n t t d � s6 t t _ n d S( sh If there's no set builtin, us the :mod:`sets` module to make one
This function makes sure that a :class:`set` and :class:`frozenset` type
are available in the :mod:`__builtin__` namespace. Since the function
checks whether :class:`set` and :class:`frozenset` are already present in
the :mod:`__builtin__` namespace and refuses to overwrite those if found,
it's safe to call this in multiple places and in scripts run under
python-2.4+, where a more efficient set implementation is already present
in the :mod:`__builtin__` namespace.
However, since this function modifies :mod:`__builtin__` there's no need
to call it more than once so you likely want to do something like this
when your program loads::
myprogram/__init__.py:
from kitchen.pycompat24 import sets
builtinset.add_builtin_set()
You can then use :func:`set` and :func:`frozenset` anywhere in your code::
myprogram/compute.py:
def math_students(algebra_student_list, geometry_student_list):
return set(algebra_student_list) union set(geometry_student_list)
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