| \section{Standard Module \sectcode{types}} |
| \label{module-types} |
| \stmodindex{types} |
| |
| \renewcommand{\indexsubitem}{(in module types)} |
| |
| This module defines names for all object types that are used by the |
| standard Python interpreter (but not for the types defined by various |
| extension modules). It is safe to use ``\code{from types import *}'' --- |
| the module does not export any other names besides the ones listed |
| here. New names exported by future versions of this module will |
| all end in \code{Type}. |
| |
| Typical use is for functions that do different things depending on |
| their argument types, like the following: |
| |
| \bcode\begin{verbatim} |
| from types import * |
| def delete(list, item): |
| if type(item) is IntType: |
| del list[item] |
| else: |
| list.remove(item) |
| \end{verbatim}\ecode |
| % |
| 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 \code{type()}). |
| \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}{StringType} |
| The type of character strings (e.g. \code{'Spam'}). |
| \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 alternative name for \code{DictType}. |
| \end{datadesc} |
| |
| \begin{datadesc}{FunctionType} |
| The type of user-defined functions and lambdas. |
| \end{datadesc} |
| |
| \begin{datadesc}{LambdaType} |
| An alternative name for \code{FunctionType}. |
| \end{datadesc} |
| |
| \begin{datadesc}{CodeType} |
| The type for code objects such as returned by \code{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 alternative name for \code{MethodType}. |
| \end{datadesc} |
| |
| \begin{datadesc}{BuiltinFunctionType} |
| The type of built-in functions like \code{len} or \code{sys.exit}. |
| \end{datadesc} |
| |
| \begin{datadesc}{BuiltinMethodType} |
| An alternative 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 \code{xrange()}. |
| \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} |