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author | Georg Brandl <georg@python.org> | 2007-08-15 14:26:55 (GMT) |
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committer | Georg Brandl <georg@python.org> | 2007-08-15 14:26:55 (GMT) |
commit | f56181ff53ba00b7bed3997a4dccd9a1b6217b57 (patch) | |
tree | 1200947a7ffc78c2719831e4c7fd900a8ab01368 /Doc/lib/libtypes.tex | |
parent | af62d9abfb78067a54c769302005f952ed999f6a (diff) | |
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diff --git a/Doc/lib/libtypes.tex b/Doc/lib/libtypes.tex deleted file mode 100644 index 5e0c5a6..0000000 --- a/Doc/lib/libtypes.tex +++ /dev/null @@ -1,215 +0,0 @@ -\section{\module{types} --- - Names for built-in types} - -\declaremodule{standard}{types} -\modulesynopsis{Names for built-in types.} - - -This module defines names for some object types that are used by -the standard Python interpreter, but not for the types defined by various -extension modules. Also, it does not include some of the types that -arise during processing such as the \code{listiterator} type. -It is safe to use \samp{from types import *} --- -the module does not export any names besides the ones listed here. -New names exported by future versions of this module will all end in -\samp{Type}. - -Typical use is for functions that do different things depending on -their argument types, like the following: - -\begin{verbatim} -from types import * -def delete(mylist, item): - if type(item) is IntType: - del mylist[item] - else: - mylist.remove(item) -\end{verbatim} - -Starting in Python 2.2, built-in factory functions such as -\function{int()} and \function{str()} are also names for the -corresponding types. This is now the preferred way to access -the type instead of using the \module{types} module. Accordingly, -the example above should be written as follows: - -\begin{verbatim} -def delete(mylist, item): - if isinstance(item, int): - del mylist[item] - else: - mylist.remove(item) -\end{verbatim} - -The module defines the following names: - -\begin{datadesc}{NoneType} -The type of \code{None}. -\end{datadesc} - -\begin{datadesc}{TypeType} -The type of type objects (such as returned by -\function{type()}\bifuncindex{type}). -\end{datadesc} - -\begin{datadesc}{BooleanType} -The type of the \class{bool} values \code{True} and \code{False}; this -is an alias of the built-in \function{bool()} function. -\versionadded{2.3} -\end{datadesc} - -\begin{datadesc}{IntType} -The type of integers (e.g. \code{1}). -\end{datadesc} - -\begin{datadesc}{LongType} -The type of long integers (e.g. \code{1L}). -\end{datadesc} - -\begin{datadesc}{FloatType} -The type of floating point numbers (e.g. \code{1.0}). -\end{datadesc} - -\begin{datadesc}{ComplexType} -The type of complex numbers (e.g. \code{1.0j}). This is not defined -if Python was built without complex number support. -\end{datadesc} - -\begin{datadesc}{StringType} -The type of character strings (e.g. \code{'Spam'}). -\end{datadesc} - -\begin{datadesc}{UnicodeType} -The type of Unicode character strings (e.g. \code{u'Spam'}). This is -not defined if Python was built without Unicode support. -\end{datadesc} - -\begin{datadesc}{TupleType} -The type of tuples (e.g. \code{(1, 2, 3, 'Spam')}). -\end{datadesc} - -\begin{datadesc}{ListType} -The type of lists (e.g. \code{[0, 1, 2, 3]}). -\end{datadesc} - -\begin{datadesc}{DictType} -The type of dictionaries (e.g. \code{\{'Bacon': 1, 'Ham': 0\}}). -\end{datadesc} - -\begin{datadesc}{DictionaryType} -An alternate name for \code{DictType}. -\end{datadesc} - -\begin{datadesc}{FunctionType} -The type of user-defined functions and lambdas. -\end{datadesc} - -\begin{datadesc}{LambdaType} -An alternate name for \code{FunctionType}. -\end{datadesc} - -\begin{datadesc}{GeneratorType} -The type of generator-iterator objects, produced by calling a -generator function. -\versionadded{2.2} -\end{datadesc} - -\begin{datadesc}{CodeType} -The type for code objects such as returned by -\function{compile()}\bifuncindex{compile}. -\end{datadesc} - -\begin{datadesc}{ClassType} -The type of user-defined classes. -\end{datadesc} - -\begin{datadesc}{InstanceType} -The type of instances of user-defined classes. -\end{datadesc} - -\begin{datadesc}{MethodType} -The type of methods of user-defined class instances. -\end{datadesc} - -\begin{datadesc}{UnboundMethodType} -An alternate name for \code{MethodType}. -\end{datadesc} - -\begin{datadesc}{BuiltinFunctionType} -The type of built-in functions like \function{len()} or -\function{sys.exit()}. -\end{datadesc} - -\begin{datadesc}{BuiltinMethodType} -An alternate name for \code{BuiltinFunction}. -\end{datadesc} - -\begin{datadesc}{ModuleType} -The type of modules. -\end{datadesc} - -\begin{datadesc}{FileType} -The type of open file objects such as \code{sys.stdout}. -\end{datadesc} - -\begin{datadesc}{XRangeType} -The type of range objects returned by -\function{xrange()}\bifuncindex{xrange}. -\end{datadesc} - -\begin{datadesc}{SliceType} -The type of objects returned by -\function{slice()}\bifuncindex{slice}. -\end{datadesc} - -\begin{datadesc}{EllipsisType} -The type of \code{Ellipsis}. -\end{datadesc} - -\begin{datadesc}{TracebackType} -The type of traceback objects such as found in -\code{sys.exc_traceback}. -\end{datadesc} - -\begin{datadesc}{FrameType} -The type of frame objects such as found in \code{tb.tb_frame} if -\code{tb} is a traceback object. -\end{datadesc} - -\begin{datadesc}{BufferType} -The type of buffer objects created by the -\function{buffer()}\bifuncindex{buffer} function. -\end{datadesc} - -\begin{datadesc}{DictProxyType} -The type of dict proxies, such as \code{TypeType.__dict__}. -\end{datadesc} - -\begin{datadesc}{NotImplementedType} -The type of \code{NotImplemented} -\end{datadesc} - -\begin{datadesc}{GetSetDescriptorType} -The type of objects defined in extension modules with \code{PyGetSetDef}, such -as \code{FrameType.f_locals} or \code{array.array.typecode}. This constant is -not defined in implementations of Python that do not have such extension -types, so for portable code use \code{hasattr(types, 'GetSetDescriptorType')}. -\versionadded{2.5} -\end{datadesc} - -\begin{datadesc}{MemberDescriptorType} -The type of objects defined in extension modules with \code{PyMemberDef}, such -as \code {datetime.timedelta.days}. This constant is not defined in -implementations of Python that do not have such extension types, so for -portable code use \code{hasattr(types, 'MemberDescriptorType')}. -\versionadded{2.5} -\end{datadesc} - -\begin{datadesc}{StringTypes} -A sequence containing \code{StringType} and \code{UnicodeType} used to -facilitate easier checking for any string object. Using this is more -portable than using a sequence of the two string types constructed -elsewhere since it only contains \code{UnicodeType} if it has been -built in the running version of Python. For example: -\code{isinstance(s, types.StringTypes)}. -\versionadded{2.2} -\end{datadesc} |