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* Doc/libtypes.tex: fix typo in table of list methods; clarify

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truncation behavior of floating point formatting

	* Doc/ref3.tex: clarify defaults for __repr__, __cmp__ and
	__str__; correct (some) descriptions of class constructors
This commit is contained in:
Guido van Rossum 1994-05-09 14:54:24 +00:00
parent 7faf67caf5
commit e6ef03260c
2 changed files with 18 additions and 8 deletions
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13
Doc/lib/libtypes.tex
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@ -307,9 +307,14 @@ are not supported. Since Python strings have an explicit length,
\code{\%s} conversions don't assume that \code{'\\0'} is the end of
the string.
For safety reasons, huge floating point precisions are truncated;
\code{\%f} conversions for huge numbers are replaced by
\code{\%g} conversions. All other errors raise exceptions.
For safety reasons, floating point precisions are clipped to 50;
\code{\%f} conversions for numbers whose absolute value is over 1e25
are replaced by \code{\%g} conversions.%
\footnote{These numbers are fairly arbitrary. They are intended to
avoid printing endless strings of meaningless digits without hampering
correct use and without having to know the exact precision of floating
point values on a particular machine.}
All other errors raise exceptions.
If the right argument is a dictionary (or any kind of mapping), then
the formats in the string must have a parenthesized key into that
@ -350,7 +355,7 @@ The following operations are defined on mutable sequence types (where
\lineiii{del \var{s}[\var{i}:\var{j}]}
{same as \code{\var{s}[\var{i}:\var{j}] = []}}{}
\lineiii{\var{s}.append(\var{x})}
{same as \code{\var{s}[len(\var{x}):len(\var{x})] = [\var{x}]}}{}
{same as \code{\var{s}[len(\var{s}):len(\var{s})] = [\var{x}]}}{}
\lineiii{\var{s}.count(\var{x})}
{return number of \var{i}'s for which \code{\var{s}[\var{i}] == \var{x}}}{}
\lineiii{\var{s}.index(\var{x})}

13
Doc/libtypes.tex
View File

@ -307,9 +307,14 @@ are not supported. Since Python strings have an explicit length,
\code{\%s} conversions don't assume that \code{'\\0'} is the end of
the string.
For safety reasons, huge floating point precisions are truncated;
\code{\%f} conversions for huge numbers are replaced by
\code{\%g} conversions. All other errors raise exceptions.
For safety reasons, floating point precisions are clipped to 50;
\code{\%f} conversions for numbers whose absolute value is over 1e25
are replaced by \code{\%g} conversions.%
\footnote{These numbers are fairly arbitrary. They are intended to
avoid printing endless strings of meaningless digits without hampering
correct use and without having to know the exact precision of floating
point values on a particular machine.}
All other errors raise exceptions.
If the right argument is a dictionary (or any kind of mapping), then
the formats in the string must have a parenthesized key into that
@ -350,7 +355,7 @@ The following operations are defined on mutable sequence types (where
\lineiii{del \var{s}[\var{i}:\var{j}]}
{same as \code{\var{s}[\var{i}:\var{j}] = []}}{}
\lineiii{\var{s}.append(\var{x})}
{same as \code{\var{s}[len(\var{x}):len(\var{x})] = [\var{x}]}}{}
{same as \code{\var{s}[len(\var{s}):len(\var{s})] = [\var{x}]}}{}
\lineiii{\var{s}.count(\var{x})}
{return number of \var{i}'s for which \code{\var{s}[\var{i}] == \var{x}}}{}
\lineiii{\var{s}.index(\var{x})}