Lichen

Annotated lib/__builtins__/iteration/core.py

979:2957d8a7ccfb
14 months ago Paul Boddie Introduce special well-defined instances, similar to predefined constants, to support loop exit conditions without having to raise a new instance as an exception on every occasion. well-defined-instances
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#!/usr/bin/env python
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"""
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Core iteration-related functions.
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Copyright (C) 2015, 2016, 2017 Paul Boddie <paul@boddie.org.uk>
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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this program.  If not, see <http://www.gnu.org/licenses/>.
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"""
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def iter(collection):
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    "Implementation of iter without callable plus sentinel support."
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    return collection.__iter__()
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def len(obj):
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    "Implementation of len."
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    return obj.__len__()
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