ó Q˜[c@sZdZddlmZmZmZddlmZmZdd„Z d„Z dgZ dS(sD ``python-future``: pure Python implementation of Python 3 round(). iÿÿÿÿ(tPYPYtPY26t bind_method(tDecimaltROUND_HALF_EVENcCsùt}|dkr!t}d}nt|dƒr=|j|ƒS|dkrXtdƒ‚ntdƒ| }tr™dtt |ƒƒkr™t |ƒ}q™nt sÀtj |ƒj |dtƒ}nt|ƒj |dtƒ}|rët|ƒSt |ƒSdS(s© See Python 3 documentation: uses Banker's Rounding. Delegates to the __round__ method if for some reason this exists. If not, rounds a number to a given precision in decimal digits (default 0 digits). This returns an int when called with one argument, otherwise the same type as the number. ndigits may be negative. See the test_round method in future/tests/test_builtins.py for examples. it __round__s"negative ndigits not supported yett10tnumpytroundingN(tFalsetNonetTruethasattrRtNotImplementedErrorRRtreprttypetfloatRt from_floattquantizeRt from_float_26tint(tnumbertndigitst return_inttexponenttd((s7lib/python2.7/site-packages/future/builtins/newround.pytnewround s&       c Csæddl}ddlm}t|ttfƒr;t|ƒS|j|ƒsY|j|ƒritt |ƒƒS|j d|ƒdkrŠd}nd}t |ƒj ƒ\}}d„}||ƒd}||t |d|ƒ| ƒ}|S( sîConverts a float to a decimal number, exactly. Note that Decimal.from_float(0.1) is not the same as Decimal('0.1'). Since 0.1 is not exactly representable in binary floating point, the value is stored as the nearest representable value which is 0x1.999999999999ap-4. The exact equivalent of the value in decimal is 0.1000000000000000055511151231257827021181583404541015625. >>> Decimal.from_float(0.1) Decimal('0.1000000000000000055511151231257827021181583404541015625') >>> Decimal.from_float(float('nan')) Decimal('NaN') >>> Decimal.from_float(float('inf')) Decimal('Infinity') >>> Decimal.from_float(-float('inf')) Decimal('-Infinity') >>> Decimal.from_float(-0.0) Decimal('-0') iÿÿÿÿN(t_dec_from_triplegð?iicSs.|dkr&ttt|ƒƒƒdSdSdS(Nii(tlentbintabs(R((s7lib/python2.7/site-packages/future/builtins/newround.pyt bit_lengthYs i(tmathtdecimalRt isinstanceRtlongRtisinftisnanRtcopysignRtas_integer_ratiotstr( tft_mathRtsigntnRRtktresult((s7lib/python2.7/site-packages/future/builtins/newround.pyR7s    !RN( t__doc__t future.utilsRRRR!RRR RRt__all__(((s7lib/python2.7/site-packages/future/builtins/newround.pyts  + ,