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//usr/lib/python3/dist-packages/past/builtins/__init__.py

"""
A resurrection of some old functions from Python 2 for use in Python 3. These
should be used sparingly, to help with porting efforts, since code using them
is no longer standard Python 3 code.

This module provides the following:

1. Implementations of these builtin functions which have no equivalent on Py3:

- apply
- chr
- cmp
- execfile

2. Aliases:

- intern <- sys.intern
- raw_input <- input
- reduce <- functools.reduce
- reload <- imp.reload
- unichr <- chr
- unicode <- str
- xrange <- range

3. List-producing versions of the corresponding Python 3 iterator-producing functions:

- filter
- map
- range
- zip

4. Forward-ported Py2 types:

- basestring
- dict
- str
- long
- unicode

"""

from future.utils import PY3
from past.builtins.noniterators import (filter, map, range, reduce, zip)
# from past.builtins.misc import (ascii, hex, input, oct, open)
if PY3:
    from past.types import (basestring,
                            olddict as dict,
                            oldstr as str,
                            long,
                            unicode)
else:
    from __builtin__ import (basestring, dict, str, long, unicode)

from past.builtins.misc import (apply, chr, cmp, execfile, intern, oct,
                                raw_input, reload, unichr, unicode, xrange)
from past import utils

if utils.PY3:
    # We only import names that shadow the builtins on Py3. No other namespace
    # pollution on Py3.

# Only shadow builtins on Py3; no new names
    __all__ = ['filter', 'map', 'range', 'reduce', 'zip',
               'basestring', 'dict', 'str', 'long', 'unicode',
               'apply', 'chr', 'cmp', 'execfile', 'intern', 'raw_input',
               'reload', 'unichr', 'xrange'
              ]

else:
    # No namespace pollution on Py2
    __all__ = []