Edit File: string.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>String/Bytes Objects — Python v2.6.6 documentation</title> <link rel="stylesheet" href="../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../', VERSION: '2.6.6', COLLAPSE_MODINDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python v2.6.6 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="top" title="Python v2.6.6 documentation" href="../index.html" /> <link rel="up" title="Concrete Objects Layer" href="concrete.html" /> <link rel="next" title="Unicode Objects and Codecs" href="unicode.html" /> <link rel="prev" title="Byte Array Objects" href="bytearray.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> </head> <body> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../modindex.html" title="Global Module Index" accesskey="M">modules</a> |</li> <li class="right" > <a href="unicode.html" title="Unicode Objects and Codecs" accesskey="N">next</a> |</li> <li class="right" > <a href="bytearray.html" title="Byte Array Objects" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="../index.html">Python v2.6.6 documentation</a> »</li> <li><a href="index.html" >Python/C API Reference Manual</a> »</li> <li><a href="concrete.html" accesskey="U">Concrete Objects Layer</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="string-bytes-objects"> <span id="stringobjects"></span><h1>String/Bytes Objects<a class="headerlink" href="#string-bytes-objects" title="Permalink to this headline">¶</a></h1> <p>These functions raise <a title="exceptions.TypeError" class="reference external" href="../library/exceptions.html#exceptions.TypeError"><tt class="xref docutils literal"><span class="pre">TypeError</span></tt></a> when expecting a string parameter and are called with a non-string parameter.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">These functions have been renamed to PyBytes_* in Python 3.x. Unless otherwise noted, the PyBytes functions available in 3.x are aliased to their PyString_* equivalents to help porting.</p> </div> <span class="target" id="index-140"></span><dl class="ctype"> <dt id="PyStringObject"> <tt class="descname">PyStringObject</tt><a class="headerlink" href="#PyStringObject" title="Permalink to this definition">¶</a></dt> <dd>This subtype of <a title="PyObject" class="reference external" href="structures.html#PyObject"><tt class="xref docutils literal"><span class="pre">PyObject</span></tt></a> represents a Python string object.</dd></dl> <dl class="cvar"> <dt id="PyString_Type"> <a title="PyTypeObject" class="reference external" href="type.html#PyTypeObject">PyTypeObject</a> <tt class="descname">PyString_Type</tt><a class="headerlink" href="#PyString_Type" title="Permalink to this definition">¶</a></dt> <dd><p id="index-141">This instance of <a title="PyTypeObject" class="reference external" href="type.html#PyTypeObject"><tt class="xref docutils literal"><span class="pre">PyTypeObject</span></tt></a> represents the Python string type; it is the same object as <tt class="docutils literal"><span class="pre">str</span></tt> and <tt class="docutils literal"><span class="pre">types.StringType</span></tt> in the Python layer. .</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_Check"> int <tt class="descname">PyString_Check</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *o</em><big>)</big><a class="headerlink" href="#PyString_Check" title="Permalink to this definition">¶</a></dt> <dd><p>Return true if the object <em>o</em> is a string object or an instance of a subtype of the string type.</p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.2: </span>Allowed subtypes to be accepted.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_CheckExact"> int <tt class="descname">PyString_CheckExact</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *o</em><big>)</big><a class="headerlink" href="#PyString_CheckExact" title="Permalink to this definition">¶</a></dt> <dd><p>Return true if the object <em>o</em> is a string object, but not an instance of a subtype of the string type.</p> <p class="versionadded"> <span class="versionmodified">New in version 2.2.</span></p> </dd></dl> <dl class="cfunction"> <dt id="PyString_FromString"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_FromString</tt><big>(</big>const char<em> *v</em><big>)</big><a class="headerlink" href="#PyString_FromString" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Return a new string object with a copy of the string <em>v</em> as value on success, and <em>NULL</em> on failure. The parameter <em>v</em> must not be <em>NULL</em>; it will not be checked.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_FromStringAndSize"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_FromStringAndSize</tt><big>(</big>const char<em> *v</em>, Py_ssize_t<em> len</em><big>)</big><a class="headerlink" href="#PyString_FromStringAndSize" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Return a new string object with a copy of the string <em>v</em> as value and length <em>len</em> on success, and <em>NULL</em> on failure. If <em>v</em> is <em>NULL</em>, the contents of the string are uninitialized.</p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This function used an <tt class="xref docutils literal"><span class="pre">int</span></tt> type for <em>len</em>. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_FromFormat"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_FromFormat</tt><big>(</big>const char<em> *format</em>, ...<big>)</big><a class="headerlink" href="#PyString_FromFormat" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Take a C <tt class="xref docutils literal"><span class="pre">printf()</span></tt>-style <em>format</em> string and a variable number of arguments, calculate the size of the resulting Python string and return a string with the values formatted into it. The variable arguments must be C types and must correspond exactly to the format characters in the <em>format</em> string. The following format characters are allowed:</p> <table border="1" class="docutils"> <colgroup> <col width="29%" /> <col width="23%" /> <col width="48%" /> </colgroup> <thead valign="bottom"> <tr><th class="head">Format Characters</th> <th class="head">Type</th> <th class="head">Comment</th> </tr> </thead> <tbody valign="top"> <tr><td><tt class="xref docutils literal"><span class="pre">%%</span></tt></td> <td><em>n/a</em></td> <td>The literal % character.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%c</span></tt></td> <td>int</td> <td>A single character, represented as an C int.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%d</span></tt></td> <td>int</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%d")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%u</span></tt></td> <td>unsigned int</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%u")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%ld</span></tt></td> <td>long</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%ld")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%lu</span></tt></td> <td>unsigned long</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%lu")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%zd</span></tt></td> <td>Py_ssize_t</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%zd")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%zu</span></tt></td> <td>size_t</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%zu")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%i</span></tt></td> <td>int</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%i")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%x</span></tt></td> <td>int</td> <td>Exactly equivalent to <tt class="docutils literal"><span class="pre">printf("%x")</span></tt>.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%s</span></tt></td> <td>char*</td> <td>A null-terminated C character array.</td> </tr> <tr><td><tt class="xref docutils literal"><span class="pre">%p</span></tt></td> <td>void*</td> <td>The hex representation of a C pointer. Mostly equivalent to <tt class="docutils literal"><span class="pre">printf("%p")</span></tt> except that it is guaranteed to start with the literal <tt class="docutils literal"><span class="pre">0x</span></tt> regardless of what the platform’s <tt class="docutils literal"><span class="pre">printf</span></tt> yields.</td> </tr> </tbody> </table> <p>An unrecognized format character causes all the rest of the format string to be copied as-is to the result string, and any extra arguments discarded.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_FromFormatV"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_FromFormatV</tt><big>(</big>const char<em> *format</em>, va_list<em> vargs</em><big>)</big><a class="headerlink" href="#PyString_FromFormatV" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Identical to <a title="PyString_FromFormat" class="reference internal" href="#PyString_FromFormat"><tt class="xref docutils literal"><span class="pre">PyString_FromFormat()</span></tt></a> except that it takes exactly two arguments.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_Size"> Py_ssize_t <tt class="descname">PyString_Size</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *string</em><big>)</big><a class="headerlink" href="#PyString_Size" title="Permalink to this definition">¶</a></dt> <dd><p>Return the length of the string in string object <em>string</em>.</p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This function returned an <tt class="xref docutils literal"><span class="pre">int</span></tt> type. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_GET_SIZE"> Py_ssize_t <tt class="descname">PyString_GET_SIZE</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *string</em><big>)</big><a class="headerlink" href="#PyString_GET_SIZE" title="Permalink to this definition">¶</a></dt> <dd><p>Macro form of <a title="PyString_Size" class="reference internal" href="#PyString_Size"><tt class="xref docutils literal"><span class="pre">PyString_Size()</span></tt></a> but without error checking.</p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This macro returned an <tt class="xref docutils literal"><span class="pre">int</span></tt> type. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_AsString"> char* <tt class="descname">PyString_AsString</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *string</em><big>)</big><a class="headerlink" href="#PyString_AsString" title="Permalink to this definition">¶</a></dt> <dd>Return a NUL-terminated representation of the contents of <em>string</em>. The pointer refers to the internal buffer of <em>string</em>, not a copy. The data must not be modified in any way, unless the string was just created using <tt class="docutils literal"><span class="pre">PyString_FromStringAndSize(NULL,</span> <span class="pre">size)</span></tt>. It must not be deallocated. If <em>string</em> is a Unicode object, this function computes the default encoding of <em>string</em> and operates on that. If <em>string</em> is not a string object at all, <a title="PyString_AsString" class="reference internal" href="#PyString_AsString"><tt class="xref docutils literal"><span class="pre">PyString_AsString()</span></tt></a> returns <em>NULL</em> and raises <a title="exceptions.TypeError" class="reference external" href="../library/exceptions.html#exceptions.TypeError"><tt class="xref docutils literal"><span class="pre">TypeError</span></tt></a>.</dd></dl> <dl class="cfunction"> <dt id="PyString_AS_STRING"> char* <tt class="descname">PyString_AS_STRING</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *string</em><big>)</big><a class="headerlink" href="#PyString_AS_STRING" title="Permalink to this definition">¶</a></dt> <dd>Macro form of <a title="PyString_AsString" class="reference internal" href="#PyString_AsString"><tt class="xref docutils literal"><span class="pre">PyString_AsString()</span></tt></a> but without error checking. Only string objects are supported; no Unicode objects should be passed.</dd></dl> <dl class="cfunction"> <dt id="PyString_AsStringAndSize"> int <tt class="descname">PyString_AsStringAndSize</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *obj</em>, char<em> **buffer</em>, Py_ssize_t<em> *length</em><big>)</big><a class="headerlink" href="#PyString_AsStringAndSize" title="Permalink to this definition">¶</a></dt> <dd><p>Return a NUL-terminated representation of the contents of the object <em>obj</em> through the output variables <em>buffer</em> and <em>length</em>.</p> <p>The function accepts both string and Unicode objects as input. For Unicode objects it returns the default encoded version of the object. If <em>length</em> is <em>NULL</em>, the resulting buffer may not contain NUL characters; if it does, the function returns <tt class="docutils literal"><span class="pre">-1</span></tt> and a <a title="exceptions.TypeError" class="reference external" href="../library/exceptions.html#exceptions.TypeError"><tt class="xref docutils literal"><span class="pre">TypeError</span></tt></a> is raised.</p> <p>The buffer refers to an internal string buffer of <em>obj</em>, not a copy. The data must not be modified in any way, unless the string was just created using <tt class="docutils literal"><span class="pre">PyString_FromStringAndSize(NULL,</span> <span class="pre">size)</span></tt>. It must not be deallocated. If <em>string</em> is a Unicode object, this function computes the default encoding of <em>string</em> and operates on that. If <em>string</em> is not a string object at all, <a title="PyString_AsStringAndSize" class="reference internal" href="#PyString_AsStringAndSize"><tt class="xref docutils literal"><span class="pre">PyString_AsStringAndSize()</span></tt></a> returns <tt class="docutils literal"><span class="pre">-1</span></tt> and raises <a title="exceptions.TypeError" class="reference external" href="../library/exceptions.html#exceptions.TypeError"><tt class="xref docutils literal"><span class="pre">TypeError</span></tt></a>.</p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This function used an <tt class="xref docutils literal"><span class="pre">int</span> <span class="pre">*</span></tt> type for <em>length</em>. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_Concat"> void <tt class="descname">PyString_Concat</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> **string</em>, <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *newpart</em><big>)</big><a class="headerlink" href="#PyString_Concat" title="Permalink to this definition">¶</a></dt> <dd>Create a new string object in <em>*string</em> containing the contents of <em>newpart</em> appended to <em>string</em>; the caller will own the new reference. The reference to the old value of <em>string</em> will be stolen. If the new string cannot be created, the old reference to <em>string</em> will still be discarded and the value of <em>*string</em> will be set to <em>NULL</em>; the appropriate exception will be set.</dd></dl> <dl class="cfunction"> <dt id="PyString_ConcatAndDel"> void <tt class="descname">PyString_ConcatAndDel</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> **string</em>, <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *newpart</em><big>)</big><a class="headerlink" href="#PyString_ConcatAndDel" title="Permalink to this definition">¶</a></dt> <dd>Create a new string object in <em>*string</em> containing the contents of <em>newpart</em> appended to <em>string</em>. This version decrements the reference count of <em>newpart</em>.</dd></dl> <dl class="cfunction"> <dt id="_PyString_Resize"> int <tt class="descname">_PyString_Resize</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> **string</em>, Py_ssize_t<em> newsize</em><big>)</big><a class="headerlink" href="#_PyString_Resize" title="Permalink to this definition">¶</a></dt> <dd><p>A way to resize a string object even though it is “immutable”. Only use this to build up a brand new string object; don’t use this if the string may already be known in other parts of the code. It is an error to call this function if the refcount on the input string object is not one. Pass the address of an existing string object as an lvalue (it may be written into), and the new size desired. On success, <em>*string</em> holds the resized string object and <tt class="docutils literal"><span class="pre">0</span></tt> is returned; the address in <em>*string</em> may differ from its input value. If the reallocation fails, the original string object at <em>*string</em> is deallocated, <em>*string</em> is set to <em>NULL</em>, a memory exception is set, and <tt class="docutils literal"><span class="pre">-1</span></tt> is returned.</p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This function used an <tt class="xref docutils literal"><span class="pre">int</span></tt> type for <em>newsize</em>. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_Format"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_Format</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *format</em>, <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *args</em><big>)</big><a class="headerlink" href="#PyString_Format" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Return a new string object from <em>format</em> and <em>args</em>. Analogous to <tt class="docutils literal"><span class="pre">format</span> <span class="pre">%</span> <span class="pre">args</span></tt>. The <em>args</em> argument must be a tuple.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_InternInPlace"> void <tt class="descname">PyString_InternInPlace</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> **string</em><big>)</big><a class="headerlink" href="#PyString_InternInPlace" title="Permalink to this definition">¶</a></dt> <dd><p>Intern the argument <em>*string</em> in place. The argument must be the address of a pointer variable pointing to a Python string object. If there is an existing interned string that is the same as <em>*string</em>, it sets <em>*string</em> to it (decrementing the reference count of the old string object and incrementing the reference count of the interned string object), otherwise it leaves <em>*string</em> alone and interns it (incrementing its reference count). (Clarification: even though there is a lot of talk about reference counts, think of this function as reference-count-neutral; you own the object after the call if and only if you owned it before the call.)</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">This function is not available in 3.x and does not have a PyBytes alias.</p> </div> </dd></dl> <dl class="cfunction"> <dt id="PyString_InternFromString"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_InternFromString</tt><big>(</big>const char<em> *v</em><big>)</big><a class="headerlink" href="#PyString_InternFromString" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>A combination of <a title="PyString_FromString" class="reference internal" href="#PyString_FromString"><tt class="xref docutils literal"><span class="pre">PyString_FromString()</span></tt></a> and <a title="PyString_InternInPlace" class="reference internal" href="#PyString_InternInPlace"><tt class="xref docutils literal"><span class="pre">PyString_InternInPlace()</span></tt></a>, returning either a new string object that has been interned, or a new (“owned”) reference to an earlier interned string object with the same value.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">This function is not available in 3.x and does not have a PyBytes alias.</p> </div> </dd></dl> <dl class="cfunction"> <dt id="PyString_Decode"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_Decode</tt><big>(</big>const char<em> *s</em>, Py_ssize_t<em> size</em>, const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyString_Decode" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Create an object by decoding <em>size</em> bytes of the encoded buffer <em>s</em> using the codec registered for <em>encoding</em>. <em>encoding</em> and <em>errors</em> have the same meaning as the parameters of the same name in the <a title="unicode" class="reference external" href="../library/functions.html#unicode"><tt class="xref docutils literal"><span class="pre">unicode()</span></tt></a> built-in function. The codec to be used is looked up using the Python codec registry. Return <em>NULL</em> if an exception was raised by the codec.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">This function is not available in 3.x and does not have a PyBytes alias.</p> </div> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This function used an <tt class="xref docutils literal"><span class="pre">int</span></tt> type for <em>size</em>. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_AsDecodedObject"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_AsDecodedObject</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *str</em>, const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyString_AsDecodedObject" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Decode a string object by passing it to the codec registered for <em>encoding</em> and return the result as Python object. <em>encoding</em> and <em>errors</em> have the same meaning as the parameters of the same name in the string <tt class="xref docutils literal"><span class="pre">encode()</span></tt> method. The codec to be used is looked up using the Python codec registry. Return <em>NULL</em> if an exception was raised by the codec.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">This function is not available in 3.x and does not have a PyBytes alias.</p> </div> </dd></dl> <dl class="cfunction"> <dt id="PyString_Encode"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_Encode</tt><big>(</big>const char<em> *s</em>, Py_ssize_t<em> size</em>, const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyString_Encode" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Encode the <tt class="xref docutils literal"><span class="pre">char</span></tt> buffer of the given size by passing it to the codec registered for <em>encoding</em> and return a Python object. <em>encoding</em> and <em>errors</em> have the same meaning as the parameters of the same name in the string <tt class="xref docutils literal"><span class="pre">encode()</span></tt> method. The codec to be used is looked up using the Python codec registry. Return <em>NULL</em> if an exception was raised by the codec.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">This function is not available in 3.x and does not have a PyBytes alias.</p> </div> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This function used an <tt class="xref docutils literal"><span class="pre">int</span></tt> type for <em>size</em>. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyString_AsEncodedObject"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyString_AsEncodedObject</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *str</em>, const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyString_AsEncodedObject" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Encode a string object using the codec registered for <em>encoding</em> and return the result as Python object. <em>encoding</em> and <em>errors</em> have the same meaning as the parameters of the same name in the string <tt class="xref docutils literal"><span class="pre">encode()</span></tt> method. The codec to be used is looked up using the Python codec registry. Return <em>NULL</em> if an exception was raised by the codec.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">This function is not available in 3.x and does not have a PyBytes alias.</p> </div> </dd></dl> </div> </div> </div> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h4>Previous topic</h4> <p class="topless"><a href="bytearray.html" title="previous chapter">Byte Array Objects</a></p> <h4>Next topic</h4> <p class="topless"><a href="unicode.html" title="next chapter">Unicode Objects and Codecs</a></p> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li><a href="../_sources/c-api/string.txt" rel="nofollow">Show Source</a></li> </ul> <div id="searchbox" style="display: none"> <h3>Quick search</h3> <form class="search" action="../search.html" method="get"> <input type="text" name="q" size="18" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> <p class="searchtip" style="font-size: 90%"> Enter search terms or a module, class or function name. </p> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../modindex.html" title="Global Module Index" >modules</a> |</li> <li class="right" > <a href="unicode.html" title="Unicode Objects and Codecs" >next</a> |</li> <li class="right" > <a href="bytearray.html" title="Byte Array Objects" >previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="../index.html">Python v2.6.6 documentation</a> »</li> <li><a href="index.html" >Python/C API Reference Manual</a> »</li> <li><a href="concrete.html" >Concrete Objects Layer</a> »</li> </ul> </div> <div class="footer"> © <a href="../copyright.html">Copyright</a> 1990-2011, Python Software Foundation. <br /> The Python Software Foundation is a non-profit corporation. <a href="http://www.python.org/psf/donations/">Please donate.</a> <br /> Last updated on Jul 20, 2011. <a href="../bugs.html">Found a bug</a>? <br /> Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 0.6.6. </div> </body> </html>
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