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Kirill Smelkov
cpython
Commits
ca1a775a
Commit
ca1a775a
authored
Jul 12, 2004
by
Raymond Hettinger
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Fix markup.
parent
18bf43c4
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Doc/whatsnew/whatsnew24.tex
Doc/whatsnew/whatsnew24.tex
+10
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Doc/whatsnew/whatsnew24.tex
View file @
ca1a775a
...
...
@@ -105,7 +105,8 @@ expressions no longer produce a warning and instead produce a
different result that's usually a long integer.
The problematic expressions are primarily left shifts and lengthy
hexadecimal and octal constants. For example,
\code
{
2 << 32
}
results
hexadecimal and octal constants. For example,
\code
{
2
\textless
{}
\textless
{}
32
}
results
in a warning in 2.3, evaluating to 0 on 32-bit platforms. In Python
2.4, this expression now returns the correct answer, 8589934592.
...
...
@@ -368,7 +369,7 @@ floating-point number and not a \class{Decimal}. Instances also have a \method{
>>> cmath.sqrt(-d)
351364.18288201344j
>>> d.sqrt()
Decimal(
``351364.1828820134592177245001''
)
Decimal(
"351364.1828820134592177245001"
)
\end{verbatim}
...
...
@@ -396,10 +397,10 @@ to alter the default precision, rounding, or trap handling.
>>> decimal.getcontext().prec
28
>>> decimal.Decimal(1) / decimal.Decimal(7)
Decimal(
``0.1428571428571428571428571429''
)
Decimal(
"0.1428571428571428571428571429"
)
>>> decimal.getcontext().prec = 9
>>> decimal.Decimal(1) / decimal.Decimal(7)
Decimal(
``0.142857143''
)
Decimal(
"0.142857143"
)
\end{verbatim}
The default action for error conditions is to return a special value
...
...
@@ -408,7 +409,7 @@ be raised:
\begin{verbatim}
>>> decimal.Decimal(1) / decimal.Decimal(0)
Decimal(
``Infinity''
)
Decimal(
"Infinity"
)
>>> decimal.getcontext().trap
_
enablers[decimal.DivisionByZero] = True
>>> decimal.Decimal(1) / decimal.Decimal(0)
Traceback (most recent call last):
...
...
@@ -425,7 +426,7 @@ numbers such as \method{to_eng_string()} and \method{to_sci_string()}.
\seepep
{
327
}{
Decimal Data Type
}{
Written by Facundo Batista and implemented
by Facundo Batista, Eric Price, Raymond Hettinger, Aahz, and Tim Peters.
}
\seeurl
{
http://research.microsoft.com/
~
hollasch/cgindex/coding/ieeefloat.html
}
\seeurl
{
http://research.microsoft.com/
\textasciitilde
hollasch/cgindex/coding/ieeefloat.html
}
{
A more detailed overview of the IEEE-754 representation.
}
\seeurl
{
http://www.lahey.com/float.htm
}
...
...
@@ -436,7 +437,7 @@ that floating-point inaccuracy can cause.}
{
A description of a decimal-based representation. This representation
is being proposed as a standard, and underlies the new Python decimal
type. Much of this material was written by Mike Cowlishaw, designer of the
R
EXX
language.
}
R
exx
language.
}
\end{seealso}
...
...
@@ -584,7 +585,7 @@ Previously this had to be a regular Python dictionary.
\begin{itemize}
\item
The inner loops for list and tupleslicing
\item
The inner loops for list and tuple
slicing
were optimized and now run about one-third faster. The inner
loops were also optimized for dictionaries with performance
boosts to
\method
{
keys()
}
,
\method
{
values()
}
,
\method
{
items()
}
,
...
...
@@ -857,7 +858,7 @@ tranmitting multiple XML-RPC calls in a single HTTP operation.
%======================================================================
% whole new modules get described in
\
subsections here
% whole new modules get described in subsections here
\subsection
{
cookielib
}
...
...
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