我们从Python开源项目中，提取了以下17个代码示例，用于说明如何使用decimal.DivisionByZero()。
def __divmod__(self, other, context=None): """ Return (self // other, self % other) """ other = _convert_other(other) if other is NotImplemented: return other if context is None: context = getcontext() ans = self._check_nans(other, context) if ans: return (ans, ans) sign = self._sign ^ other._sign if self._isinfinity(): if other._isinfinity(): ans = context._raise_error(InvalidOperation, 'divmod(INF, INF)') return ans, ans else: return (_SignedInfinity[sign], context._raise_error(InvalidOperation, 'INF % x')) if not other: if not self: ans = context._raise_error(DivisionUndefined, 'divmod(0, 0)') return ans, ans else: return (context._raise_error(DivisionByZero, 'x // 0', sign), context._raise_error(InvalidOperation, 'x % 0')) quotient, remainder = self._divide(other, context) remainder = remainder._fix(context) return quotient, remainder
def __floordiv__(self, other, context=None): """self // other""" other = _convert_other(other) if other is NotImplemented: return other if context is None: context = getcontext() ans = self._check_nans(other, context) if ans: return ans if self._isinfinity(): if other._isinfinity(): return context._raise_error(InvalidOperation, 'INF // INF') else: return _SignedInfinity[self._sign ^ other._sign] if not other: if self: return context._raise_error(DivisionByZero, 'x // 0', self._sign ^ other._sign) else: return context._raise_error(DivisionUndefined, '0 // 0') return self._divide(other, context)[0]
def logb(self, context=None): """ Returns the exponent of the magnitude of self's MSD. The result is the integer which is the exponent of the magnitude of the most significant digit of self (as though it were truncated to a single digit while maintaining the value of that digit and without limiting the resulting exponent). """ # logb(NaN) = NaN ans = self._check_nans(context=context) if ans: return ans if context is None: context = getcontext() # logb(+/-Inf) = +Inf if self._isinfinity(): return _Infinity # logb(0) = -Inf, DivisionByZero if not self: return context._raise_error(DivisionByZero, 'logb(0)', 1) # otherwise, simply return the adjusted exponent of self, as a # Decimal. Note that no attempt is made to fit the result # into the current context. ans = Decimal(self.adjusted()) return ans._fix(context)
def __truediv__(self, other, context=None): """Return self / other.""" other = _convert_other(other) if other is NotImplemented: return NotImplemented if context is None: context = getcontext() sign = self._sign ^ other._sign if self._is_special or other._is_special: ans = self._check_nans(other, context) if ans: return ans if self._isinfinity() and other._isinfinity(): return context._raise_error(InvalidOperation, '(+-)INF/(+-)INF') if self._isinfinity(): return _SignedInfinity[sign] if other._isinfinity(): context._raise_error(Clamped, 'Division by infinity') return _dec_from_triple(sign, '0', context.Etiny()) # Special cases for zeroes if not other: if not self: return context._raise_error(DivisionUndefined, '0 / 0') return context._raise_error(DivisionByZero, 'x / 0', sign) if not self: exp = self._exp - other._exp coeff = 0 else: # OK, so neither = 0, INF or NaN shift = len(other._int) - len(self._int) + context.prec + 1 exp = self._exp - other._exp - shift op1 = _WorkRep(self) op2 = _WorkRep(other) if shift >= 0: coeff, remainder = divmod(op1.int * 10**shift, op2.int) else: coeff, remainder = divmod(op1.int, op2.int * 10**-shift) if remainder: # result is not exact; adjust to ensure correct rounding if coeff % 5 == 0: coeff += 1 else: # result is exact; get as close to ideal exponent as possible ideal_exp = self._exp - other._exp while exp < ideal_exp and coeff % 10 == 0: coeff //= 10 exp += 1 ans = _dec_from_triple(sign, str(coeff), exp) return ans._fix(context)
def match_voice(self, wave_file, identifier, gender): """Match the voice (wave file) versus the gmm model of 'identifier' in db. :type wave_file: string :param wave_file: wave file extracted from the wave :type identifier: string :param identifier: the speaker in the wave :type gender: char F, M or U :param gender: the gender of the speaker (optional)""" wave_basename = os.path.splitext(wave_file)[0] try: # print "match_voice" # print (wave_basename, identifier + '.gmm', # gender, self.get_path()) fm.wav_vs_gmm(wave_basename, identifier + '.gmm', gender, self.get_path()) # print "after wav_vs_gmm" cls = {} sr.manage_ident(wave_basename, gender + '.' + identifier + '.gmm', cls) except DivisionByZero: #ValueError, e: print "ValueError in MATCH_VOICE" print "tring to fix... ", #(wave_basename, identifier + '.gmm', # gender, self.get_path()) raise e fm._train_init(wave_basename) fm._train_map(wave_basename) fm.diarization(wave_basename) fm.wav_vs_gmm(wave_basename, identifier + '.gmm', gender, self.get_path()) cls = {} sr.manage_ident(wave_basename, gender + '.' + identifier + '.gmm', cls) spkrs = {} for clust in cls: spkrs.update(cls[clust].speakers) return spkrs
