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