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proc
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self
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root
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opt
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cloudlinux
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venv
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lib64
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python3.11
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site-packages
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future
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builtins
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Filename :
iterators.py
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""" This module is designed to be used as follows:: from future.builtins.iterators import * And then, for example:: for i in range(10**15): pass for (a, b) in zip(range(10**15), range(-10**15, 0)): pass Note that this is standard Python 3 code, plus some imports that do nothing on Python 3. The iterators this brings in are:: - ``range`` - ``filter`` - ``map`` - ``zip`` On Python 2, ``range`` is a pure-Python backport of Python 3's ``range`` iterator with slicing support. The other iterators (``filter``, ``map``, ``zip``) are from the ``itertools`` module on Python 2. On Python 3 these are available in the module namespace but not exported for * imports via __all__ (zero no namespace pollution). Note that these are also available in the standard library ``future_builtins`` module on Python 2 -- but not Python 3, so using the standard library version is not portable, nor anywhere near complete. """ from __future__ import division, absolute_import, print_function import itertools from future import utils if not utils.PY3: filter = itertools.ifilter map = itertools.imap from future.types import newrange as range zip = itertools.izip __all__ = ['filter', 'map', 'range', 'zip'] else: import builtins filter = builtins.filter map = builtins.map range = builtins.range zip = builtins.zip __all__ = []