Mailman 3 August 2007 - Python-checkins

buildbot failure in x86 XP-3 3.0
by buildbot＠python.org Aug. 30, 2007

Aug. 30, 2007

The Buildbot has detected a new failure of x86 XP-3 3.0. Full details are available at: http://www.python.org/dev/buildbot/all/x86%20XP-3%203.0/builds/46 Buildbot URL: http://www.python.org/dev/buildbot/all/ Build Reason: Build Source Stamp: [branch branches/py3k] HEAD Blamelist: eric.smith,guido.van.rossum,kurt.kaiser,thomas.wouters BUILD FAILED: failed compile sincerely, -The Buildbot

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buildbot failure in amd64 XP 3.0
by buildbot＠python.org Aug. 30, 2007

Aug. 30, 2007

The Buildbot has detected a new failure of amd64 XP 3.0. Full details are available at: http://www.python.org/dev/buildbot/all/amd64%20XP%203.0/builds/57 Buildbot URL: http://www.python.org/dev/buildbot/all/ Build Reason: Build Source Stamp: [branch branches/py3k] HEAD Blamelist: collin.winter,guido.van.rossum,thomas.wouters BUILD FAILED: failed compile sincerely, -The Buildbot

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r57795 - python/branches/decimal-branch/Lib/decimal.py
by facundo.batista Aug. 30, 2007

Aug. 30, 2007

Author: facundo.batista Date: Fri Aug 31 02:49:27 2007 New Revision: 57795 Modified: python/branches/decimal-branch/Lib/decimal.py Log: Simplifications and small fixes to round. Thanks Mark Dickinson. Modified: python/branches/decimal-branch/Lib/decimal.py ============================================================================== --- python/branches/decimal-branch/Lib/decimal.py (original) +++ python/branches/decimal-branch/Lib/decimal.py Fri Aug 31 02:49:27 2007 @@ -1639,20 +1639,16 @@ else: temp = Decimal(self) - numdigits = len(temp._int) - -# # See if we need to extend precision - expdiff = prec - numdigits + # See if we need to extend precision + expdiff = prec - len(temp._int) # not allowing subnormal for quantize if fromQuantize and (forceExp - context.Emax) > context.prec: - context._raise_error(InvalidOperation, "Quantize doesn't allow subnormal") - return NaN + return context._raise_error(InvalidOperation, "Quantize doesn't allow subnormal") if expdiff >= 0: if fromQuantize and len(temp._int)+expdiff > context.prec: - context._raise_error(InvalidOperation, 'Beyond guarded precision') - return NaN + return context._raise_error(InvalidOperation, 'Beyond guarded precision') tmp = list(temp._int) tmp.extend([0] * expdiff) ans = Decimal( (temp._sign, tmp, temp._exp - expdiff)) @@ -1670,42 +1666,24 @@ this_function = getattr(temp, self._pick_rounding_function[rounding]) # Now we've got the rounding function - origprec = context.prec - if prec != context.prec: - context = context._shallow_copy() - context.prec = prec ans = this_function(prec, expdiff, context) if forceExp is not None: exp = forceExp if fromQuantize and not (context.Emin <= exp <= context.Emax): if (context.Emin <= ans._exp) and ans._int == (0,): - context._raise_error(InvalidOperation) - return NaN + return context._raise_error(InvalidOperation) - if context.Emin < exp < context.Emax: - newdiff = ans._exp - exp - if newdiff >= 0: - ans._int = ans._int + tuple([0]*newdiff) - else: - ans._int = (0,) - ans._exp = exp + newdiff = ans._exp - exp + if newdiff >= 0: + ans._int = ans._int + tuple([0]*newdiff) else: - if not context.flags[Underflow]: - newdiff = ans._exp - exp - if newdiff >= 0: - ans._int = ans._int + tuple([0]*newdiff) - else: - ans._int = (0,) - - ans._exp = exp - context._raise_error(Rounded) - context._raise_error(Inexact, 'Changed in rounding') - return ans + ans._int = (0,) + ans._exp = exp - if len(ans._int) > origprec: - context._raise_error(InvalidOperation, 'Beyond guarded precision') - return NaN + if context.Emin < exp < context.Emax: + if len(ans._int) > context.prec: + return context._raise_error(InvalidOperation, 'Beyond guarded precision') context._raise_error(Rounded) context._raise_error(Inexact, 'Changed in rounding')

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r57789 - python/branches/decimal-branch/Lib/decimal.py
by facundo.batista Aug. 30, 2007

Aug. 30, 2007

Author: facundo.batista Date: Fri Aug 31 02:23:13 2007 New Revision: 57789 Modified: python/branches/decimal-branch/Lib/decimal.py Log: Made decimal.py Py2.3 friendly. Modified: python/branches/decimal-branch/Lib/decimal.py ============================================================================== --- python/branches/decimal-branch/Lib/decimal.py (original) +++ python/branches/decimal-branch/Lib/decimal.py Fri Aug 31 02:23:13 2007 @@ -2110,7 +2110,7 @@ return None # compute nth root of xc using Newton's method - a = 1 << -(-_nbits(xc)//n) # initial estimate + a = 1L << -(-_nbits(xc)//n) # initial estimate while True: q, r = divmod(xc, a**(n-1)) if a <= q: @@ -5028,8 +5028,8 @@ integer to x / 2**shift; use round-to-even in case of a tie. """ - b, q = 1 << shift, x >> shift - return q + (((x & (b-1))<<1) + (q&1) > b) + b, q = 1L << shift, x >> shift + return q + (2*(x & (b-1)) + (q&1) > b) def _div_nearest(a, b): """Closest integer to a/b, a and b positive integers; rounds to even @@ -5037,7 +5037,7 @@ """ q, r = divmod(a, b) - return q + ((r<<1) + (q&1) > b) + return q + (2*r + (q&1) > b) def _ilog(x, M, L = 8): """Integer approximation to M*log(x/M), with absolute error boundable @@ -5072,9 +5072,9 @@ y = x-M # argument reduction; R = number of reductions performed R = 0 - while (R <= L and abs(y) << L-R >= M or + while (R <= L and long(abs(y)) << L-R >= M or R > L and abs(y) >> R-L >= M): - y = _div_nearest(M*y << 1, + y = _div_nearest(long(M*y) << 1, M + _sqrt_nearest(M*(M+_rshift_nearest(y, R)), M)) R += 1 @@ -5189,18 +5189,18 @@ # expm1(z/2**(R-1)), ... , exp(z/2), exp(z). # Find R such that x/2**R/M <= 2**-L - R = _nbits((x<<L)//M) + R = _nbits((long(x)<<L)//M) # Taylor series. (2**L)**T > M T = -int(-10*len(str(M))//(3*L)) y = _div_nearest(x, T) - Mshift = M<<R + Mshift = long(M)<<R for i in xrange(T-1, 0, -1): y = _div_nearest(x*(Mshift + y), Mshift * i) # Expansion for k in xrange(R-1, -1, -1): - Mshift = M<<(k+2) + Mshift = long(M)<<(k+2) y = _div_nearest(y*(y+Mshift), Mshift) return M+y

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r57787 - peps/trunk/pep-3109.txt
by collin.winter Aug. 30, 2007

Aug. 30, 2007

Author: collin.winter Date: Fri Aug 31 02:18:43 2007 New Revision: 57787 Modified: peps/trunk/pep-3109.txt Log: Typo fix in PEP 3109. Modified: peps/trunk/pep-3109.txt ============================================================================== --- peps/trunk/pep-3109.txt (original) +++ peps/trunk/pep-3109.txt Fri Aug 31 02:18:43 2007 @@ -238,7 +238,7 @@ Implementation ============== -This PEP was implemented in revisions 57783 [#r57783]_. +This PEP was implemented in revision 57783 [#r57783]_. References

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r57786 - peps/trunk/pep-0000.txt peps/trunk/pep-3109.txt
by collin.winter Aug. 30, 2007

Aug. 30, 2007

Author: collin.winter Date: Fri Aug 31 02:17:57 2007 New Revision: 57786 Modified: peps/trunk/pep-0000.txt peps/trunk/pep-3109.txt Log: Mark PEP 3109 as final. Modified: peps/trunk/pep-0000.txt ============================================================================== --- peps/trunk/pep-0000.txt (original) +++ peps/trunk/pep-0000.txt Fri Aug 31 02:17:57 2007 @@ -77,7 +77,6 @@ SA 358 The "bytes" Object Schemenauer, GvR SA 3101 Advanced String Formatting Talin SA 3106 Revamping dict.keys(), .values() & .items() GvR - SA 3109 Raising Exceptions in Python 3000 Winter SA 3118 Revising the buffer protocol Oliphant, Banks SA 3119 Introducing Abstract Base Classes GvR, Talin SA 3121 Extension Module Initialization & Finalization von Löwis @@ -165,6 +164,7 @@ SF 3104 Access to Names in Outer Scopes Yee SF 3105 Make print a function Brandl SF 3107 Function Annotations Winter, Lownds + SF 3109 Raising Exceptions in Python 3000 Winter SF 3110 Catching Exceptions in Python 3000 Winter SF 3111 Simple input built-in in Python 3000 Roberge SF 3112 Bytes literals in Python 3000 Orendorff @@ -481,7 +481,7 @@ SA 3106 Revamping dict.keys(), .values() & .items() GvR SF 3107 Function Annotations Winter, Lownds S 3108 Standard Library Reorganization Cannon - SA 3109 Raising Exceptions in Python 3000 Winter + SF 3109 Raising Exceptions in Python 3000 Winter SF 3110 Catching Exceptions in Python 3000 Winter SF 3111 Simple input built-in in Python 3000 Roberge SF 3112 Bytes literals in Python 3000 Orendorff Modified: peps/trunk/pep-3109.txt ============================================================================== --- peps/trunk/pep-3109.txt (original) +++ peps/trunk/pep-3109.txt Fri Aug 31 02:17:57 2007 @@ -3,7 +3,7 @@ Version: $Revision$ Last-Modified: $Date$ Author: Collin Winter <collinw(a)gmail.com> -Status: Accepted +Status: Final Type: Standards Track Content-Type: text/x-rst Created: 19-Jan-2006 @@ -235,6 +235,12 @@ PEP 344. +Implementation +============== + +This PEP was implemented in revisions 57783 [#r57783]_. + + References ========== @@ -268,6 +274,9 @@ .. [#throw-fixer] http://svn.python.org/view/sandbox/trunk/2to3/fixes/fix_throw.py +.. [#r57783] + http://svn.python.org/view/python/branches/py3k/Include/?rev=57783&view=rev + Copyright =========

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r57785 - peps/trunk/pep-3134.txt
by collin.winter Aug. 30, 2007

Aug. 30, 2007

Author: collin.winter Date: Fri Aug 31 02:17:44 2007 New Revision: 57785 Modified: peps/trunk/pep-3134.txt Log: Update PEP 3134 to reflect its partial implementation. Modified: peps/trunk/pep-3134.txt ============================================================================== --- peps/trunk/pep-3134.txt (original) +++ peps/trunk/pep-3134.txt Fri Aug 31 02:17:44 2007 @@ -483,6 +483,12 @@ argument instead of the type, value, and traceback arguments. +Implementation + + The __traceback__ and __cause__ attributes and the new raise syntax were + implemented in revision 57783 [14]. + + Acknowledgements Brett Cannon, Greg Ewing, Guido van Rossum, Jeremy Hylton, Phillip @@ -530,6 +536,9 @@ [13] Adam Olsen suggests using a weakref from stack frame to exception http://mail.python.org/pipermail/python-3000/2007-January/005363.html + [14] Patch to implement the bulk of the PEP + http://svn.python.org/view/python/branches/py3k/Include/?rev=57783&view=rev + Copyright

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r57784 - in python/branches/decimal-branch/Lib: decimal.py test/test_decimal.py
by facundo.batista Aug. 30, 2007

Aug. 30, 2007

Author: facundo.batista Date: Fri Aug 31 02:10:34 2007 New Revision: 57784 Modified: python/branches/decimal-branch/Lib/decimal.py python/branches/decimal-branch/Lib/test/test_decimal.py Log: Added function name translation for compare_signal and reduce/normalize in the test_decimal.py file. Fixed comparesig to make sure that diagnostic information attached to NaNs isn't lost. Added a call to _fix at the end of quantize; this takes care of any folddown that's necessary. And finally, make sure that normalize doesn't remove too many zeros. Thanks Mark Dickinson. Modified: python/branches/decimal-branch/Lib/decimal.py ============================================================================== --- python/branches/decimal-branch/Lib/decimal.py (original) +++ python/branches/decimal-branch/Lib/decimal.py Fri Aug 31 02:10:34 2007 @@ -2335,6 +2335,9 @@ def normalize(self, context=None): """Normalize- strip trailing 0s, change anything equal to 0 to 0e0""" + if context is None: + context = getcontext() + if self._is_special: ans = self._check_nans(context=context) if ans: @@ -2346,9 +2349,10 @@ if not dup: return Decimal( (dup._sign, (0,), 0) ) + exp_max = [context.Emax, context.Etop()][context._clamp] end = len(dup._int) exp = dup._exp - while dup._int[end-1] == 0: + while dup._int[end-1] == 0 and exp < exp_max: exp += 1 end -= 1 return Decimal( (dup._sign, dup._int[:end], exp) ) @@ -2359,6 +2363,8 @@ Similar to self._rescale(exp._exp) but with error checking. """ + if context is None: + context = getcontext() if self._is_special or exp._is_special: ans = self._check_nans(exp, context) if ans: @@ -2367,11 +2373,12 @@ if exp._isinfinity() or self._isinfinity(): if exp._isinfinity() and self._isinfinity(): return self # if both are inf, it is OK - if context is None: - context = getcontext() return context._raise_error(InvalidOperation, 'quantize with one INF') - return self._rescale(exp._exp, rounding, context, watchexp=0, fromQuantize=True) + ans = self._rescale(exp._exp, rounding, context, watchexp=0, fromQuantize=True) + # call to fix takes care of any necessary folddown + ans = ans._fix(context) + return ans def same_quantum(self, other): """Test whether self and other have the same exponent. @@ -2694,8 +2701,23 @@ It's pretty much like compare(), but all NaNs signal, with signaling NaNs taking precedence over quiet NaNs. """ - if self._isnan() or other._isnan(): - return context._raise_error(InvalidOperation) + if context is None: + context = getcontext() + + self_is_nan = self._isnan() + other_is_nan = other._isnan() + if self_is_nan == 2: + return context._raise_error(InvalidOperation, 'sNaN', + 1, self) + if other_is_nan == 2: + return context._raise_error(InvalidOperation, 'sNaN', + 1, other) + if self_is_nan: + return context._raise_error(InvalidOperation, 'NaN in compare_signal', + 1, self) + if other_is_nan: + return context._raise_error(InvalidOperation, 'NaN in compare_signal', + 1, other) return self.compare(other, context=context) def compare_total(self, other): Modified: python/branches/decimal-branch/Lib/test/test_decimal.py ============================================================================== --- python/branches/decimal-branch/Lib/test/test_decimal.py (original) +++ python/branches/decimal-branch/Lib/test/test_decimal.py Fri Aug 31 02:10:34 2007 @@ -110,6 +110,7 @@ 'squareroot':'sqrt', 'apply':'_apply', 'class':'number_class', + 'comparesig':'compare_signal', 'comparetotal':'compare_total', 'comparetotmag':'compare_total_mag', 'copyabs':'copy_abs', @@ -125,7 +126,7 @@ 'nextminus':'next_minus', 'nextplus':'next_plus', 'nexttoward':'next_toward', - 'trim':'normalize', + 'reduce':'normalize', } # For some operations (currently exp, ln, log10, power), the decNumber

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buildbot failure in x86 XP 3.0
by buildbot＠python.org Aug. 30, 2007

Aug. 30, 2007

The Buildbot has detected a new failure of x86 XP 3.0. Full details are available at: http://www.python.org/dev/buildbot/all/x86%20XP%203.0/builds/59 Buildbot URL: http://www.python.org/dev/buildbot/all/ Build Reason: Build Source Stamp: [branch branches/py3k] HEAD Blamelist: guido.van.rossum,thomas.wouters BUILD FAILED: failed compile sincerely, -The Buildbot

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buildbot warnings in x86 XP trunk
by buildbot＠python.org Aug. 30, 2007

Aug. 30, 2007

The Buildbot has detected a new failure of x86 XP trunk. Full details are available at: http://www.python.org/dev/buildbot/all/x86%20XP%20trunk/builds/617 Buildbot URL: http://www.python.org/dev/buildbot/all/ Build Reason: Build Source Stamp: [branch trunk] HEAD Blamelist: thomas.wouters Build had warnings: warnings failed slave lost sincerely, -The Buildbot

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