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- import sys
- import decimal
- from decimal import Context
-
- PY3 = sys.version_info[0] == 3
- PY2 = sys.version_info[0] == 2
-
-
- if PY3:
- long = int
- xrange = range
- else:
- long = long # pylint: disable=long-builtin
- xrange = xrange # pylint: disable=xrange-builtin
-
- # unicode / binary types
- if PY3:
- text_type = str
- binary_type = bytes
- string_types = (str,)
- unichr = chr
- def maybe_decode(x):
- return x.decode()
- def maybe_encode(x):
- return x.encode()
- def maybe_chr(x):
- return x
- def maybe_ord(x):
- return x
- else:
- text_type = unicode # pylint: disable=unicode-builtin, undefined-variable
- binary_type = str
- string_types = (
- basestring, # pylint: disable=basestring-builtin, undefined-variable
- )
- unichr = unichr # pylint: disable=unichr-builtin
- def maybe_decode(x):
- return x
- def maybe_encode(x):
- return x
- def maybe_chr(x):
- return chr(x)
- def maybe_ord(x):
- return ord(x)
-
-
- def round_py2_compat(what):
- """
- Python 2 and Python 3 use different rounding strategies in round(). This
- function ensures that results are python2/3 compatible and backward
- compatible with previous py2 releases
- :param what: float
- :return: rounded long
- """
- d = Context(
- prec=len(str(long(what))), # round to integer with max precision
- rounding=decimal.ROUND_HALF_UP
- ).create_decimal(str(what)) # str(): python 2.6 compat
- return long(d)
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