ó \ K]c@s+dZddlZidd6dd6dd6d d 6d d 6d d6dd6dd6dd6dd6dd6dd6dd6dd6ZejdƒjejƒZd „Zd!„Z i d*d6d+d6d,d 6d-d 6d.d 6d/d6d0d6d1d6d2d6d3d6d4d6Z d%„Z d&„Z d'„Z d(„Zd)„ZdS(5s Helper functions for np.timedelta64 and np.datetime64. For now, multiples-of-units (for example timedeltas expressed in tens of seconds) are not supported. i’’’’NitYitMitWitDithitmitsitmsi tusi tnsi tpsi tfsi tasittnatcCst|dkt|dkkS(sB Whether the *src* and *dest* units are of the same kind. i(tDATETIME_UNITS(tsrctdest((s/lib/python2.7/site-packages/numba/npdatetime.pyt same_kind(scCstt|}t|}||kr$tS|dkr4tS||krDtS|dkrTtS|dkrp|dkrptStS(Nii(RtTruetFalse(RR((s/lib/python2.7/site-packages/numba/npdatetime.pytcan_cast_timedelta_units/s      ii<ičcCsz|dkrdS|}d}xC||krayt|\}}Wntk rSdSX||9}qW||krr|SdSdS(sĶ Return an integer multiplier allowing to convert from *big_unit_code* to *small_unit_code*. None is returned if the conversion is not possible through a simple integer multiplication. iiN(t_factorstKeyErrortNone(t big_unit_codetsmall_unit_codetctfactortmult((s/lib/python2.7/site-packages/numba/npdatetime.pyt_get_conversion_multiplierUs   cCstt|t|ƒS(sl Return an integer multiplier allowing to convert from timedeltas of *src_unit* to *dest_unit*. (RR(tsrc_unitt dest_unit((s/lib/python2.7/site-packages/numba/npdatetime.pytget_timedelta_conversion_factoros cCs“t|}t|}|dks,|dkr9|ddfS|dkrj|dkrjtd||fƒ‚nd \}}|dkrĻ|dkr§dd}d}d}q(|dkr(dd}d}d}q(nY|dkr(|dkrdd}d}d}q(|dkr(dd}d}d}q(n||krrt||ƒ}|d k sat||fƒ‚||||fSt||ƒ}|d k sŸt||fƒ‚||||fSd S(s Compute a possible conversion for combining *datetime_unit* and *timedelta_unit* (presumably for adding or subtracting). Return (result unit, integer datetime multiplier, integer timedelta multiplier). RuntimeError is raised if the combination is impossible. iiis1cannot combine datetime64(%r) and timedelta64(%r)iiiaiimii N(iiiP:iP:iš iP:iĄiP:iĄi@ƒ(Rt RuntimeErrorRRtAssertionError(t datetime_unitttimedelta_unitt dt_unit_codet td_unit_codet dt_factort td_factorR((s/lib/python2.7/site-packages/numba/npdatetime.pyt!get_datetime_timedelta_conversionxsB                   cCsht|}t|}|dkr$|S|dkr4|S|dkrP|dkrPdS||kr`|S|SdS(sµ Return the unit result of combining *datetime_unit* with *timedelta_unit* (e.g. by adding or subtracting). None is returned if combining those units is forbidden. iiN(RR(R$R%R&R'((s/lib/python2.7/site-packages/numba/npdatetime.pyt combine_datetime_timedelta_units¬s     cCsHt|}t|}|dkr$|S|dkr4|S||krD|S|S(s9 Get the best (i.e. finer-grained) of two units. i(R(tunit_atunit_btatb((s/lib/python2.7/site-packages/numba/npdatetime.pyt get_best_unitĄs     (ii (ii(ii(ii<(ii<(iič(i ič(i ič(i ič(i ič(i ič(t__doc__tnumpytnpRt timedelta64tastypetint64tNATRRRRR!R*R+R0(((s/lib/python2.7/site-packages/numba/npdatetime.pytsH       4