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831bb3575d
Signed-off-by: Joe Guo <joeg@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
98 lines
2.9 KiB
Python
98 lines
2.9 KiB
Python
# module which helps with porting to Python 3
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#
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# Copyright (C) Lumir Balhar <lbalhar@redhat.com> 2017
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""module which helps with porting to Python 3"""
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import sys
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PY3 = sys.version_info[0] == 3
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if PY3:
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def cmp_fn(x, y):
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"""
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Replacement for built-in function cmp that was removed in Python 3
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Compare the two objects x and y and return an integer according to
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the outcome. The return value is negative if x < y, zero if x == y
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and strictly positive if x > y.
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"""
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return (x > y) - (x < y)
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# compat functions
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from urllib.parse import quote as urllib_quote
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from urllib.request import urlopen as urllib_urlopen
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from functools import cmp_to_key as cmp_to_key_fn
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# compat types
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integer_types = int,
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string_types = str
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text_type = str
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binary_type = bytes
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# alias
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import io
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StringIO = io.StringIO
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else:
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if sys.version_info < (2, 7):
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def cmp_to_key_fn(mycmp):
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"""Convert a cmp= function into a key= function"""
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class K(object):
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__slots__ = ['obj']
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def __init__(self, obj, *args):
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self.obj = obj
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def __lt__(self, other):
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return mycmp(self.obj, other.obj) < 0
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def __gt__(self, other):
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return mycmp(self.obj, other.obj) > 0
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def __eq__(self, other):
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return mycmp(self.obj, other.obj) == 0
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def __le__(self, other):
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return mycmp(self.obj, other.obj) <= 0
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def __ge__(self, other):
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return mycmp(self.obj, other.obj) >= 0
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def __ne__(self, other):
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return mycmp(self.obj, other.obj) != 0
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def __hash__(self):
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raise TypeError('hash not implemented')
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return K
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else:
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from functools import cmp_to_key as cmp_to_key_fn
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# compat functions
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from urllib import quote as urllib_quote
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from urllib import urlopen as urllib_urlopen
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# compat types
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integer_types = (int, long)
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string_types = basestring
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text_type = unicode
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binary_type = str
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# alias
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import StringIO
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StringIO = StringIO.StringIO
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cmp_fn = cmp
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