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- <span class="breadcrumbs">\r
- <a href="psycopg2-module.html">Package psycopg2</a> ::\r
- Module extensions\r
- </span><br />\r
- </td>\r
- <td><table cellpadding="0" cellspacing="0">\r
- <tr><td align="right"><span class="options">[<a href="../private/psycopg2.extensions-module.html">show private</a> | hide private]</span></td></tr>\r
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- </table></td>\r
-</tr></table>\r
-\r
-<!-- =========== START OF MODULE DESCRIPTION =========== -->\r
-<h2 class="module">Module psycopg2.extensions</h2>\r
-\r
-<p>psycopg extensions to the DBAPI-2.0</p>\r
-<p>This module holds all the extensions to the DBAPI-2.0 provided by psycopg.</p>\r
-<ul class="rst-simple">\r
-<li><a href="../private/psycopg2._psycopg.connection-class.html" class="link"><code>connection</code></a> -- the new-type inheritable connection class</li>\r
-<li><a href="../private/psycopg2._psycopg.cursor-class.html" class="link"><code>cursor</code></a> -- the new-type inheritable cursor class</li>\r
-<li><a href="psycopg2.extensions-module.html#adapt" class="link"><code>adapt()</code></a> -- exposes the <a class="reference" href="http://www.python.org/peps/pep-0246.html">PEP-246</a> compatible adapting mechanism used\r
-by psycopg to adapt Python types to PostgreSQL ones</li>\r
-</ul>\r
-<hr/>\r
-\r
-<!-- =========== START OF FUNCTION SUMMARY =========== -->\r
-<table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">\r
-<tr bgcolor="#70b0f0" class="summary">\r
- <th colspan="2">Function Summary</th></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">object</td>\r
- <td><code><span class="summary-sig"><a href="psycopg2.extensions-module.html#adapt" class="summary-sig-name"><code>adapt</code></a>(<span class="summary-sig-arg">obj</span>,\r
- <span class="summary-sig-arg">protocol</span>,\r
- <span class="summary-sig-arg">alternate</span>)</span></code>\r
-<br />\r
-adapt obj to given protocol</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new AsIs wrapper object</td>\r
- <td><code><a name="AsIs"></a><span class="summary-sig"><span class="summary-sig-name">AsIs</span>(<span class="summary-sig-arg">obj</span>)</span></code>\r
-</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new boolean value</td>\r
- <td><code><a name="Boolean"></a><span class="summary-sig"><span class="summary-sig-name">Boolean</span>(<span class="summary-sig-arg">obj</span>)</span></code>\r
-</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new wrapper</td>\r
- <td><code><a name="DateFromPy"></a><span class="summary-sig"><span class="summary-sig-name">DateFromPy</span>(<span class="summary-sig-arg">datetime.date</span>)</span></code>\r
-</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new wrapper</td>\r
- <td><code><a name="IntervalFromPy"></a><span class="summary-sig"><span class="summary-sig-name">IntervalFromPy</span>(<span class="summary-sig-arg">datetime.timedelta</span>)</span></code>\r
-</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new type object</td>\r
- <td><code><span class="summary-sig"><a href="psycopg2.extensions-module.html#new_type" class="summary-sig-name"><code>new_type</code></a>(<span class="summary-sig-arg">oids</span>,\r
- <span class="summary-sig-arg">name</span>,\r
- <span class="summary-sig-arg">adapter</span>)</span></code>\r
-<br />\r
-Create a new binding object.</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new quoted string</td>\r
- <td><code><a name="QuotedString"></a><span class="summary-sig"><span class="summary-sig-name">QuotedString</span>(<span class="summary-sig-arg">str</span>,\r
- <span class="summary-sig-arg">enc</span>)</span></code>\r
-</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype"> </td>\r
- <td><code><span class="summary-sig"><a href="psycopg2.extensions-module.html#register_adapter" class="summary-sig-name"><code>register_adapter</code></a>(<span class="summary-sig-arg">typ</span>,\r
- <span class="summary-sig-arg">callable</span>)</span></code>\r
-<br />\r
-Register 'callable' as an ISQLQuote adapter for type 'typ'.</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">None</td>\r
- <td><code><span class="summary-sig"><a href="psycopg2.extensions-module.html#register_type" class="summary-sig-name"><code>register_type</code></a>(<span class="summary-sig-arg">obj</span>)</span></code>\r
-<br />\r
-register obj with psycopg type system</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new wrapper</td>\r
- <td><code><a name="TimeFromPy"></a><span class="summary-sig"><span class="summary-sig-name">TimeFromPy</span>(<span class="summary-sig-arg">datetime.time</span>)</span></code>\r
-</td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="rtype">new wrapper</td>\r
- <td><code><a name="TimestampFromPy"></a><span class="summary-sig"><span class="summary-sig-name">TimestampFromPy</span>(<span class="summary-sig-arg">datetime.datetime</span>)</span></code>\r
-</td></tr>\r
-</table><br />\r
-\r
-\r
-<!-- =========== START OF VARIABLE SUMMARY =========== -->\r
-<table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">\r
-<tr bgcolor="#70b0f0" class="summary">\r
- <th colspan="2">Variable Summary</th></tr>\r
-<tr><td align="right" valign="top" width="15%" class="vtype"><code>int</code></td>\r
-<td><strong><a href="psycopg2.extensions-module.html#ISOLATION_LEVEL_AUTOCOMMIT"><code>ISOLATION_LEVEL_AUTOCOMMIT</code></a></strong> = <span title="0">0 </span></td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="vtype"><code>int</code></td>\r
-<td><strong><a href="psycopg2.extensions-module.html#ISOLATION_LEVEL_READ_COMMITTED"><code>ISOLATION_LEVEL_READ_COMMITTED</code></a></strong> = <span title="1">1 </span></td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="vtype"><code>int</code></td>\r
-<td><strong><a href="psycopg2.extensions-module.html#ISOLATION_LEVEL_READ_UNCOMMITTED"><code>ISOLATION_LEVEL_READ_UNCOMMITTED</code></a></strong> = <span title="1">1 </span></td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="vtype"><code>int</code></td>\r
-<td><strong><a href="psycopg2.extensions-module.html#ISOLATION_LEVEL_REPEATABLE_READ"><code>ISOLATION_LEVEL_REPEATABLE_READ</code></a></strong> = <span title="2">2 </span></td></tr>\r
-<tr><td align="right" valign="top" width="15%" class="vtype"><code>int</code></td>\r
-<td><strong><a href="psycopg2.extensions-module.html#ISOLATION_LEVEL_SERIALIZABLE"><code>ISOLATION_LEVEL_SERIALIZABLE</code></a></strong> = <span title="2">2 </span></td></tr>\r
-</table><br />\r
-\r
-\r
-<!-- =========== START OF FUNCTION DETAILS =========== -->\r
-<table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">\r
-<tr bgcolor="#70b0f0" class="details">\r
- <th colspan="2">Function Details</th></tr>\r
-</table>\r
-\r
-<a name="adapt"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">adapt</span>(<span class="sig-arg">obj</span>,\r
- <span class="sig-arg">protocol</span>,\r
- <span class="sig-arg">alternate</span>)</span>\r
- </h3>\r
-<p>adapt obj to given protocol</p>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-object </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="AsIs"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">AsIs</span>(<span class="sig-arg">obj</span>)</span>\r
- </h3>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new AsIs wrapper object </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="Boolean"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">Boolean</span>(<span class="sig-arg">obj</span>)</span>\r
- </h3>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new boolean value </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="DateFromPy"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">DateFromPy</span>(<span class="sig-arg">datetime.date</span>)</span>\r
- </h3>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new wrapper </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="IntervalFromPy"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">IntervalFromPy</span>(<span class="sig-arg">datetime.timedelta</span>)</span>\r
- </h3>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new wrapper </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="new_type"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">new_type</span>(<span class="sig-arg">oids</span>,\r
- <span class="sig-arg">name</span>,\r
- <span class="sig-arg">adapter</span>)</span>\r
- </h3>\r
-<p>Create a new binding object. The object can be used with the\r
-<a href="psycopg2.extensions-module.html#register_type" class="link"><code>register_type()</code></a> function to bind PostgreSQL objects to python objects.</p>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Parameters:</dt>\r
- <dd><code><strong class="pname">oids</strong></code> -\r
- Tuple of <tt class="docutils literal"><span class="pre">oid</span></tt> of the PostgreSQL types to convert.\r
- </dd>\r
- <dd><code><strong class="pname">name</strong></code> -\r
- Name for the new type\r
- </dd>\r
- <dd><code><strong class="pname">adapter</strong></code> -\r
- Callable to perform type conversion.\r
-It must have the signature <tt class="docutils literal"><span class="pre">fun(value,</span> <span class="pre">cur)</span></tt> where <tt class="docutils literal"><span class="pre">value</span></tt> is\r
-the string representation returned by PostgreSQL (<code>None</code> if <tt class="docutils literal"><span class="pre">NULL</span></tt>)\r
-and <tt class="docutils literal"><span class="pre">cur</span></tt> is the cursor from which data are read.\r
- </dd>\r
- </dl>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new type object </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="QuotedString"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">QuotedString</span>(<span class="sig-arg">str</span>,\r
- <span class="sig-arg">enc</span>)</span>\r
- </h3>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new quoted string </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="register_adapter"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">register_adapter</span>(<span class="sig-arg">typ</span>,\r
- <span class="sig-arg">callable</span>)</span>\r
- </h3>\r
-<p>Register 'callable' as an ISQLQuote adapter for type 'typ'.</p>\r
- <dl><dt></dt><dd>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="register_type"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">register_type</span>(<span class="sig-arg">obj</span>)</span>\r
- </h3>\r
-<p>register obj with psycopg type system</p>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Parameters:</dt>\r
- <dd><code><strong class="pname">obj</strong></code> -\r
- A type adapter created by <a href="psycopg2.extensions-module.html#new_type" class="link"><code>new_type()</code></a>\r
- </dd>\r
- </dl>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-None </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="TimeFromPy"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">TimeFromPy</span>(<span class="sig-arg">datetime.time</span>)</span>\r
- </h3>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new wrapper </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-\r
-<a name="TimestampFromPy"></a>\r
-<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>\r
- <h3><span class="sig"><span class="sig-name">TimestampFromPy</span>(<span class="sig-arg">datetime.datetime</span>)</span>\r
- </h3>\r
- <dl><dt></dt><dd>\r
- <dl><dt>Returns:</dt>\r
- <dd>\r
-new wrapper </dd>\r
- </dl>\r
- </dd></dl>\r
-</td></tr></table>\r
-<br />\r
-\r
-\r
-<!-- =========== START OF VARIABLE DETAILS =========== -->\r
-<table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">\r
-<tr bgcolor="#70b0f0" class="details">\r
- <th colspan="2">Variable Details</th></tr>\r
-</table>\r
-<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>\r
-<a name="ISOLATION_LEVEL_AUTOCOMMIT"></a>\r
-<h3>ISOLATION_LEVEL_AUTOCOMMIT</h3>\r
-<dl>\r
- <dt></dt>\r
- <dd>\r
- <dl>\r
- <dt>Type:</dt>\r
- <dd>\r
- <code>int</code>\r
-\r
- </dd>\r
- <dt title="0">Value:</dt>\r
- <dd title="0"><table><tr><td>\r
-<pre class="variable">\r
-0 </pre>\r
- </td></tr></table></dd>\r
- </dl>\r
- </dd>\r
-</dl></td></tr></table>\r
-<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>\r
-<a name="ISOLATION_LEVEL_READ_COMMITTED"></a>\r
-<h3>ISOLATION_LEVEL_READ_COMMITTED</h3>\r
-<dl>\r
- <dt></dt>\r
- <dd>\r
- <dl>\r
- <dt>Type:</dt>\r
- <dd>\r
- <code>int</code>\r
-\r
- </dd>\r
- <dt title="1">Value:</dt>\r
- <dd title="1"><table><tr><td>\r
-<pre class="variable">\r
-1 </pre>\r
- </td></tr></table></dd>\r
- </dl>\r
- </dd>\r
-</dl></td></tr></table>\r
-<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>\r
-<a name="ISOLATION_LEVEL_READ_UNCOMMITTED"></a>\r
-<h3>ISOLATION_LEVEL_READ_UNCOMMITTED</h3>\r
-<dl>\r
- <dt></dt>\r
- <dd>\r
- <dl>\r
- <dt>Type:</dt>\r
- <dd>\r
- <code>int</code>\r
-\r
- </dd>\r
- <dt title="1">Value:</dt>\r
- <dd title="1"><table><tr><td>\r
-<pre class="variable">\r
-1 </pre>\r
- </td></tr></table></dd>\r
- </dl>\r
- </dd>\r
-</dl></td></tr></table>\r
-<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>\r
-<a name="ISOLATION_LEVEL_REPEATABLE_READ"></a>\r
-<h3>ISOLATION_LEVEL_REPEATABLE_READ</h3>\r
-<dl>\r
- <dt></dt>\r
- <dd>\r
- <dl>\r
- <dt>Type:</dt>\r
- <dd>\r
- <code>int</code>\r
-\r
- </dd>\r
- <dt title="2">Value:</dt>\r
- <dd title="2"><table><tr><td>\r
-<pre class="variable">\r
-2 </pre>\r
- </td></tr></table></dd>\r
- </dl>\r
- </dd>\r
-</dl></td></tr></table>\r
-<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>\r
-<a name="ISOLATION_LEVEL_SERIALIZABLE"></a>\r
-<h3>ISOLATION_LEVEL_SERIALIZABLE</h3>\r
-<dl>\r
- <dt></dt>\r
- <dd>\r
- <dl>\r
- <dt>Type:</dt>\r
- <dd>\r
- <code>int</code>\r
-\r
- </dd>\r
- <dt title="2">Value:</dt>\r
- <dd title="2"><table><tr><td>\r
-<pre class="variable">\r
-2 </pre>\r
- </td></tr></table></dd>\r
- </dl>\r
- </dd>\r
-</dl></td></tr></table>\r
-<br />\r
-\r
-\r
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