Documentation/Source/eric5.PluginManager.PluginManager.html

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<h1>eric5.PluginManager.PluginManager</h1>
<p>
Module implementing the Plugin Manager.
</p>
<h3>Global Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Classes</h3>
<table>
<tr>
<td><a href="#PluginManager">PluginManager</a></td>
<td>Class implementing the Plugin Manager.</td>
</tr>
</table>
<h3>Functions</h3>
<table>
<tr><td>None</td></tr>
</table>
<hr /><hr />
<a NAME="PluginManager" ID="PluginManager"></a>
<h2>PluginManager</h2>
<p>
    Class implementing the Plugin Manager.
</p><h3>Signals</h3>
<dl>
<dt>allPlugginsActivated()</dt>
<dd>
emitted at startup after all plugins have
        been activated
</dd><dt>pluginAboutToBeActivated(modulName, pluginObject)</dt>
<dd>
emitted just before a
        plugin is activated
</dd><dt>pluginAboutToBeDeactivated(modulName, pluginObject)</dt>
<dd>
emitted just before a
        plugin is deactivated
</dd><dt>pluginActivated(modulName, pluginObject)</dt>
<dd>
emitted just after a plugin
        was activated
</dd><dt>pluginDeactivated(modulName, pluginObject)</dt>
<dd>
emitted just after a plugin
        was deactivated
</dd><dt>shutdown()</dt>
<dd>
emitted at shutdown of the IDE
</dd>
</dl>
<h3>Derived from</h3>
QObject
<h3>Class Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Class Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>
<table>
<tr>
<td><a href="#PluginManager.__init__">PluginManager</a></td>
<td>Constructor</td>
</tr><tr>
<td><a href="#PluginManager.__canActivatePlugin">__canActivatePlugin</a></td>
<td>Private method to check, if a plugin can be activated.</td>
</tr><tr>
<td><a href="#PluginManager.__canDeactivatePlugin">__canDeactivatePlugin</a></td>
<td>Private method to check, if a plugin can be deactivated.</td>
</tr><tr>
<td><a href="#PluginManager.__checkPluginsDownloadDirectory">__checkPluginsDownloadDirectory</a></td>
<td>Private slot to check for the existence of the plugins download directory.</td>
</tr><tr>
<td><a href="#PluginManager.__getShortInfo">__getShortInfo</a></td>
<td>Private method to extract the short info from a module.</td>
</tr><tr>
<td><a href="#PluginManager.__insertPluginsPaths">__insertPluginsPaths</a></td>
<td>Private method to insert the valid plugin paths intos the search path.</td>
</tr><tr>
<td><a href="#PluginManager.__loadPlugins">__loadPlugins</a></td>
<td>Private method to load the plugins found.</td>
</tr><tr>
<td><a href="#PluginManager.__pluginDirectoriesExist">__pluginDirectoriesExist</a></td>
<td>Private method to check, if the plugin folders exist.</td>
</tr><tr>
<td><a href="#PluginManager.__pluginModulesExist">__pluginModulesExist</a></td>
<td>Private method to check, if there are plugins available.</td>
</tr><tr>
<td><a href="#PluginManager.activatePlugin">activatePlugin</a></td>
<td>Public method to activate a plugin.</td>
</tr><tr>
<td><a href="#PluginManager.activatePlugins">activatePlugins</a></td>
<td>Public method to activate all plugins having the "autoactivate" attribute set to True.</td>
</tr><tr>
<td><a href="#PluginManager.deactivatePlugin">deactivatePlugin</a></td>
<td>Public method to deactivate a plugin.</td>
</tr><tr>
<td><a href="#PluginManager.deactivateVcsPlugins">deactivateVcsPlugins</a></td>
<td>Public method to deactivated all activated VCS plugins.</td>
</tr><tr>
<td><a href="#PluginManager.doShutdown">doShutdown</a></td>
<td>Public method called to perform actions upon shutdown of the IDE.</td>
</tr><tr>
<td><a href="#PluginManager.finalizeSetup">finalizeSetup</a></td>
<td>Public method to finalize the setup of the plugin manager.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginApiFiles">getPluginApiFiles</a></td>
<td>Public method to get the list of API files installed by a plugin.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginConfigData">getPluginConfigData</a></td>
<td>Public method to get the config data of all active, non on-demand plugins used by the configuration dialog.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginDetails">getPluginDetails</a></td>
<td>Public method to get detailed information about a plugin.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginDir">getPluginDir</a></td>
<td>Public method to get the path of a plugin directory.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginDisplayStrings">getPluginDisplayStrings</a></td>
<td>Public method to get the display strings of all plugins of a specific type.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginExeDisplayData">getPluginExeDisplayData</a></td>
<td>Public method to get data to display information about a plugins external tool.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginInfos">getPluginInfos</a></td>
<td>Public method to get infos about all loaded plugins.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginModules">getPluginModules</a></td>
<td>Public method to get a list of plugin modules.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginObject">getPluginObject</a></td>
<td>Public method to activate an ondemand plugin given by type and typename.</td>
</tr><tr>
<td><a href="#PluginManager.getPluginPreviewPixmap">getPluginPreviewPixmap</a></td>
<td>Public method to get a preview pixmap of a plugin of a specific type.</td>
</tr><tr>
<td><a href="#PluginManager.getVcsSystemIndicators">getVcsSystemIndicators</a></td>
<td>Public method to get the Vcs System indicators.</td>
</tr><tr>
<td><a href="#PluginManager.initOnDemandPlugin">initOnDemandPlugin</a></td>
<td>Public method to create a plugin object for the named on demand plugin.</td>
</tr><tr>
<td><a href="#PluginManager.initOnDemandPlugins">initOnDemandPlugins</a></td>
<td>Public method to create plugin objects for all on demand plugins.</td>
</tr><tr>
<td><a href="#PluginManager.isPluginActive">isPluginActive</a></td>
<td>Public method to check, if a certain plugin is active.</td>
</tr><tr>
<td><a href="#PluginManager.isPluginLoaded">isPluginLoaded</a></td>
<td>Public method to check, if a certain plugin is loaded.</td>
</tr><tr>
<td><a href="#PluginManager.isValidPluginName">isValidPluginName</a></td>
<td>Public methode to check, if a file name is a valid plugin name.</td>
</tr><tr>
<td><a href="#PluginManager.loadPlugin">loadPlugin</a></td>
<td>Public method to load a plugin module.</td>
</tr><tr>
<td><a href="#PluginManager.preferencesChanged">preferencesChanged</a></td>
<td>Public slot to react to changes in configuration.</td>
</tr><tr>
<td><a href="#PluginManager.removePluginFromSysModules">removePluginFromSysModules</a></td>
<td>Public method to remove a plugin and all related modules from sys.modules.</td>
</tr><tr>
<td><a href="#PluginManager.unloadPlugin">unloadPlugin</a></td>
<td>Public method to unload a plugin module.</td>
</tr>
</table>
<h3>Static Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<a NAME="PluginManager.__init__" ID="PluginManager.__init__"></a>
<h4>PluginManager (Constructor)</h4>
<b>PluginManager</b>(<i>parent=None, doLoadPlugins=True, develPlugin=None</i>)
<p>
        Constructor
</p><p>
        The Plugin Manager deals with three different plugin directories.
        The first is the one, that is part of eric5 (eric5/Plugins). The
        second one is the global plugin directory called 'eric5plugins',
        which is located inside the site-packages directory. The last one
        is the user plugin directory located inside the .eric5 directory
        of the users home directory.
</p><dl>
<dt><i>parent</i></dt>
<dd>
reference to the parent object (QObject)
</dd><dt><i>doLoadPlugins=</i></dt>
<dd>
flag indicating, that plugins should
            be loaded (boolean)
</dd><dt><i>develPlugin=</i></dt>
<dd>
filename of a plugin to be loaded for
            development (string)
</dd>
</dl><dl>
<dt>Raises <b>PluginPathError</b>:</dt>
<dd>
raised to indicate an invalid plug-in path
</dd>
</dl><a NAME="PluginManager.__canActivatePlugin" ID="PluginManager.__canActivatePlugin"></a>
<h4>PluginManager.__canActivatePlugin</h4>
<b>__canActivatePlugin</b>(<i>module</i>)
<p>
        Private method to check, if a plugin can be activated.
</p><dl>
<dt><i>module</i></dt>
<dd>
reference to the module to be activated
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
flag indicating, if the module satisfies all requirements
            for being activated (boolean)
</dd>
</dl><dl>
<dt>Raises <b>PluginClassFormatError</b>:</dt>
<dd>
raised to indicate an invalid
            plug-in class format
</dd><dt>Raises <b>PluginModuleFormatError</b>:</dt>
<dd>
raised to indicate an invalid
            plug-in module format
</dd>
</dl><a NAME="PluginManager.__canDeactivatePlugin" ID="PluginManager.__canDeactivatePlugin"></a>
<h4>PluginManager.__canDeactivatePlugin</h4>
<b>__canDeactivatePlugin</b>(<i>module</i>)
<p>
        Private method to check, if a plugin can be deactivated.
</p><dl>
<dt><i>module</i></dt>
<dd>
reference to the module to be deactivated
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
flag indicating, if the module satisfies all requirements
            for being deactivated (boolean)
</dd>
</dl><a NAME="PluginManager.__checkPluginsDownloadDirectory" ID="PluginManager.__checkPluginsDownloadDirectory"></a>
<h4>PluginManager.__checkPluginsDownloadDirectory</h4>
<b>__checkPluginsDownloadDirectory</b>(<i></i>)
<p>
        Private slot to check for the existence of the plugins download directory.
</p><a NAME="PluginManager.__getShortInfo" ID="PluginManager.__getShortInfo"></a>
<h4>PluginManager.__getShortInfo</h4>
<b>__getShortInfo</b>(<i>module</i>)
<p>
        Private method to extract the short info from a module.
</p><dl>
<dt><i>module</i></dt>
<dd>
module to extract short info from
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
short info as a tuple giving plugin name (string),
            short description (string), error flag (boolean) and
            version (string)
</dd>
</dl><a NAME="PluginManager.__insertPluginsPaths" ID="PluginManager.__insertPluginsPaths"></a>
<h4>PluginManager.__insertPluginsPaths</h4>
<b>__insertPluginsPaths</b>(<i></i>)
<p>
        Private method to insert the valid plugin paths intos the search path.
</p><a NAME="PluginManager.__loadPlugins" ID="PluginManager.__loadPlugins"></a>
<h4>PluginManager.__loadPlugins</h4>
<b>__loadPlugins</b>(<i></i>)
<p>
        Private method to load the plugins found.
</p><a NAME="PluginManager.__pluginDirectoriesExist" ID="PluginManager.__pluginDirectoriesExist"></a>
<h4>PluginManager.__pluginDirectoriesExist</h4>
<b>__pluginDirectoriesExist</b>(<i></i>)
<p>
        Private method to check, if the plugin folders exist.
</p><p>
        If the plugin folders don't exist, they are created (if possible).
</p><dl>
<dt>Returns:</dt>
<dd>
tuple of a flag indicating existence of any of the plugin
            directories (boolean) and a message (string)
</dd>
</dl><a NAME="PluginManager.__pluginModulesExist" ID="PluginManager.__pluginModulesExist"></a>
<h4>PluginManager.__pluginModulesExist</h4>
<b>__pluginModulesExist</b>(<i></i>)
<p>
        Private method to check, if there are plugins available.
</p><dl>
<dt>Returns:</dt>
<dd>
flag indicating the availability of plugins (boolean)
</dd>
</dl><a NAME="PluginManager.activatePlugin" ID="PluginManager.activatePlugin"></a>
<h4>PluginManager.activatePlugin</h4>
<b>activatePlugin</b>(<i>name, onDemand=False</i>)
<p>
        Public method to activate a plugin.
</p><dl>
<dt><i>name</i></dt>
<dd>
name of the module to be activated
</dd><dt><i>onDemand=</i></dt>
<dd>
flag indicating activation of an
            on demand plugin (boolean)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
reference to the initialized plugin object
</dd>
</dl><dl>
<dt>Raises <b>PluginActivationError</b>:</dt>
<dd>
raised to indicate an issue during the
            plug-in activation
</dd>
</dl><a NAME="PluginManager.activatePlugins" ID="PluginManager.activatePlugins"></a>
<h4>PluginManager.activatePlugins</h4>
<b>activatePlugins</b>(<i></i>)
<p>
        Public method to activate all plugins having the "autoactivate" attribute
        set to True.
</p><a NAME="PluginManager.deactivatePlugin" ID="PluginManager.deactivatePlugin"></a>
<h4>PluginManager.deactivatePlugin</h4>
<b>deactivatePlugin</b>(<i>name, onDemand=False</i>)
<p>
        Public method to deactivate a plugin.
</p><dl>
<dt><i>name</i></dt>
<dd>
name of the module to be deactivated
</dd><dt><i>onDemand=</i></dt>
<dd>
flag indicating deactivation of an
            on demand plugin (boolean)
</dd>
</dl><a NAME="PluginManager.deactivateVcsPlugins" ID="PluginManager.deactivateVcsPlugins"></a>
<h4>PluginManager.deactivateVcsPlugins</h4>
<b>deactivateVcsPlugins</b>(<i></i>)
<p>
        Public method to deactivated all activated VCS plugins.
</p><a NAME="PluginManager.doShutdown" ID="PluginManager.doShutdown"></a>
<h4>PluginManager.doShutdown</h4>
<b>doShutdown</b>(<i></i>)
<p>
        Public method called to perform actions upon shutdown of the IDE.
</p><a NAME="PluginManager.finalizeSetup" ID="PluginManager.finalizeSetup"></a>
<h4>PluginManager.finalizeSetup</h4>
<b>finalizeSetup</b>(<i></i>)
<p>
        Public method to finalize the setup of the plugin manager.
</p><a NAME="PluginManager.getPluginApiFiles" ID="PluginManager.getPluginApiFiles"></a>
<h4>PluginManager.getPluginApiFiles</h4>
<b>getPluginApiFiles</b>(<i>language</i>)
<p>
        Public method to get the list of API files installed by a plugin.
</p><dl>
<dt><i>language</i></dt>
<dd>
language of the requested API files (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
list of API filenames (list of string)
</dd>
</dl><a NAME="PluginManager.getPluginConfigData" ID="PluginManager.getPluginConfigData"></a>
<h4>PluginManager.getPluginConfigData</h4>
<b>getPluginConfigData</b>(<i></i>)
<p>
        Public method to get the config data of all active, non on-demand plugins
        used by the configuration dialog.
</p><p>
        Plugins supporting this functionality must provide the plugin module
        function 'getConfigData' returning a dictionary with unique keys
        of lists with the following list contents:
        <dl>
          <dt>display string</dt>
          <dd>string shown in the selection area of the configuration page.
              This should be a localized string</dd>
          <dt>pixmap name</dt>
          <dd>filename of the pixmap to be shown next to the display string</dd>
          <dt>page creation function</dt>
          <dd>plugin module function to be called to create the configuration
              page. The page must be subclasses from
              Preferences.ConfigurationPages.ConfigurationPageBase and must
              implement a method called 'save' to save the settings. A parent
              entry will be created in the selection list, if this value is None.</dd>
          <dt>parent key</dt>
          <dd>dictionary key of the parent entry or None, if this defines a
              toplevel entry.</dd>
          <dt>reference to configuration page</dt>
          <dd>This will be used by the configuration dialog and must always be None</dd>
        </dl>
</p><dl>
<dt>Returns:</dt>
<dd>
plug-in configuration data
</dd>
</dl><a NAME="PluginManager.getPluginDetails" ID="PluginManager.getPluginDetails"></a>
<h4>PluginManager.getPluginDetails</h4>
<b>getPluginDetails</b>(<i>name</i>)
<p>
        Public method to get detailed information about a plugin.
</p><dl>
<dt><i>name</i></dt>
<dd>
name of the module to get detailed infos about (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
details of the plugin as a dictionary
</dd>
</dl><a NAME="PluginManager.getPluginDir" ID="PluginManager.getPluginDir"></a>
<h4>PluginManager.getPluginDir</h4>
<b>getPluginDir</b>(<i>key</i>)
<p>
        Public method to get the path of a plugin directory.
</p><dl>
<dt><i>key</i></dt>
<dd>
key of the plug-in directory (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
path of the requested plugin directory (string)
</dd>
</dl><a NAME="PluginManager.getPluginDisplayStrings" ID="PluginManager.getPluginDisplayStrings"></a>
<h4>PluginManager.getPluginDisplayStrings</h4>
<b>getPluginDisplayStrings</b>(<i>type_</i>)
<p>
        Public method to get the display strings of all plugins of a specific type.
</p><dl>
<dt><i>type_</i></dt>
<dd>
type of the plugins (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
dictionary with name as key and display string as value
            (dictionary of string)
</dd>
</dl><a NAME="PluginManager.getPluginExeDisplayData" ID="PluginManager.getPluginExeDisplayData"></a>
<h4>PluginManager.getPluginExeDisplayData</h4>
<b>getPluginExeDisplayData</b>(<i></i>)
<p>
        Public method to get data to display information about a plugins
        external tool.
</p><dl>
<dt>Returns:</dt>
<dd>
list of dictionaries containing the data. Each dictionary must
            either contain data for the determination or the data to be displayed.<br />
            A dictionary of the first form must have the following entries:
            <ul>
                <li>programEntry - indicator for this dictionary form (boolean),
                    always True</li>
                <li>header - string to be diplayed as a header (string)</li>
                <li>exe - the executable (string)</li>
                <li>versionCommand - commandline parameter for the exe (string)</li>
                <li>versionStartsWith - indicator for the output line containing
                    the version (string)</li>
                <li>versionPosition - number of element containing the
                    version (integer)</li>
                <li>version - version to be used as default (string)</li>
                <li>versionCleanup - tuple of two integers giving string positions
                    start and stop for the version string (tuple of integers)</li>
            </ul>
            A dictionary of the second form must have the following entries:
            <ul>
                <li>programEntry - indicator for this dictionary form (boolean),
                    always False</li>
                <li>header - string to be diplayed as a header (string)</li>
                <li>text - entry text to be shown (string)</li>
                <li>version - version text to be shown (string)</li>
            </ul>
</dd>
</dl><a NAME="PluginManager.getPluginInfos" ID="PluginManager.getPluginInfos"></a>
<h4>PluginManager.getPluginInfos</h4>
<b>getPluginInfos</b>(<i></i>)
<p>
        Public method to get infos about all loaded plugins.
</p><dl>
<dt>Returns:</dt>
<dd>
list of tuples giving module name (string), plugin name (string),
            version (string), autoactivate (boolean), active (boolean),
            short description (string), error flag (boolean)
</dd>
</dl><a NAME="PluginManager.getPluginModules" ID="PluginManager.getPluginModules"></a>
<h4>PluginManager.getPluginModules</h4>
<b>getPluginModules</b>(<i>pluginPath</i>)
<p>
        Public method to get a list of plugin modules.
</p><dl>
<dt><i>pluginPath</i></dt>
<dd>
name of the path to search (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
list of plugin module names (list of string)
</dd>
</dl><a NAME="PluginManager.getPluginObject" ID="PluginManager.getPluginObject"></a>
<h4>PluginManager.getPluginObject</h4>
<b>getPluginObject</b>(<i>type_, typename, maybeActive=False</i>)
<p>
        Public method to activate an ondemand plugin given by type and typename.
</p><dl>
<dt><i>type_</i></dt>
<dd>
type of the plugin to be activated (string)
</dd><dt><i>typename</i></dt>
<dd>
name of the plugin within the type category (string)
</dd><dt><i>maybeActive=</i></dt>
<dd>
flag indicating, that the plugin may be active
            already (boolean)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
reference to the initialized plugin object
</dd>
</dl><a NAME="PluginManager.getPluginPreviewPixmap" ID="PluginManager.getPluginPreviewPixmap"></a>
<h4>PluginManager.getPluginPreviewPixmap</h4>
<b>getPluginPreviewPixmap</b>(<i>type_, name</i>)
<p>
        Public method to get a preview pixmap of a plugin of a specific type.
</p><dl>
<dt><i>type_</i></dt>
<dd>
type of the plugin (string)
</dd><dt><i>name</i></dt>
<dd>
name of the plugin type (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
preview pixmap (QPixmap)
</dd>
</dl><a NAME="PluginManager.getVcsSystemIndicators" ID="PluginManager.getVcsSystemIndicators"></a>
<h4>PluginManager.getVcsSystemIndicators</h4>
<b>getVcsSystemIndicators</b>(<i></i>)
<p>
        Public method to get the Vcs System indicators.
</p><p>
        Plugins supporting this functionality must support the module function
        getVcsSystemIndicator returning a dictionary with indicator as key and
        a tuple with the vcs name (string) and vcs display string (string).
</p><dl>
<dt>Returns:</dt>
<dd>
dictionary with indicator as key and a list of tuples as values.
            Each tuple contains the vcs name (string) and vcs display string (string).
</dd>
</dl><a NAME="PluginManager.initOnDemandPlugin" ID="PluginManager.initOnDemandPlugin"></a>
<h4>PluginManager.initOnDemandPlugin</h4>
<b>initOnDemandPlugin</b>(<i>name</i>)
<p>
        Public method to create a plugin object for the named on demand plugin.
</p><p>
        Note: The plug-in is not activated.
</p><dl>
<dt><i>name</i></dt>
<dd>
name of the plug-in (string)
</dd>
</dl><dl>
<dt>Raises <b>PluginActivationError</b>:</dt>
<dd>
raised to indicate an issue during the
            plug-in activation
</dd>
</dl><a NAME="PluginManager.initOnDemandPlugins" ID="PluginManager.initOnDemandPlugins"></a>
<h4>PluginManager.initOnDemandPlugins</h4>
<b>initOnDemandPlugins</b>(<i></i>)
<p>
        Public method to create plugin objects for all on demand plugins.
</p><p>
        Note: The plugins are not activated.
</p><a NAME="PluginManager.isPluginActive" ID="PluginManager.isPluginActive"></a>
<h4>PluginManager.isPluginActive</h4>
<b>isPluginActive</b>(<i>pluginName</i>)
<p>
        Public method to check, if a certain plugin is active.
</p><dl>
<dt><i>pluginName</i></dt>
<dd>
name of the plugin to check for (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
flag indicating, if the plugin is active (boolean)
</dd>
</dl><a NAME="PluginManager.isPluginLoaded" ID="PluginManager.isPluginLoaded"></a>
<h4>PluginManager.isPluginLoaded</h4>
<b>isPluginLoaded</b>(<i>pluginName</i>)
<p>
        Public method to check, if a certain plugin is loaded.
</p><dl>
<dt><i>pluginName</i></dt>
<dd>
name of the plugin to check for (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
flag indicating, if the plugin is loaded (boolean)
</dd>
</dl><a NAME="PluginManager.isValidPluginName" ID="PluginManager.isValidPluginName"></a>
<h4>PluginManager.isValidPluginName</h4>
<b>isValidPluginName</b>(<i>pluginName</i>)
<p>
        Public methode to check, if a file name is a valid plugin name.
</p><p>
        Plugin modules must start with "Plugin" and have the extension ".py".
</p><dl>
<dt><i>pluginName</i></dt>
<dd>
name of the file to be checked (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
flag indicating a valid plugin name (boolean)
</dd>
</dl><a NAME="PluginManager.loadPlugin" ID="PluginManager.loadPlugin"></a>
<h4>PluginManager.loadPlugin</h4>
<b>loadPlugin</b>(<i>name, directory, reload_=False</i>)
<p>
        Public method to load a plugin module.
</p><p>
        Initially all modules are inactive. Modules that are requested on
        demand are sorted out and are added to the on demand list. Some
        basic validity checks are performed as well. Modules failing these
        checks are added to the failed modules list.
</p><dl>
<dt><i>name</i></dt>
<dd>
name of the module to be loaded (string)
</dd><dt><i>directory</i></dt>
<dd>
name of the plugin directory (string)
</dd><dt><i>reload_</i></dt>
<dd>
flag indicating to reload the module (boolean)
</dd>
</dl><dl>
<dt>Raises <b>PluginLoadError</b>:</dt>
<dd>
raised to indicate an issue loading
            the plug-in
</dd>
</dl><a NAME="PluginManager.preferencesChanged" ID="PluginManager.preferencesChanged"></a>
<h4>PluginManager.preferencesChanged</h4>
<b>preferencesChanged</b>(<i></i>)
<p>
        Public slot to react to changes in configuration.
</p><a NAME="PluginManager.removePluginFromSysModules" ID="PluginManager.removePluginFromSysModules"></a>
<h4>PluginManager.removePluginFromSysModules</h4>
<b>removePluginFromSysModules</b>(<i>pluginName, package, internalPackages</i>)
<p>
        Public method to remove a plugin and all related modules from sys.modules.
</p><dl>
<dt><i>pluginName</i></dt>
<dd>
name of the plugin module (string)
</dd><dt><i>package</i></dt>
<dd>
name of the plugin package (string)
</dd><dt><i>internalPackages</i></dt>
<dd>
list of intenal packages (list of string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
flag indicating the plugin module was found in sys.modules (boolean)
</dd>
</dl><a NAME="PluginManager.unloadPlugin" ID="PluginManager.unloadPlugin"></a>
<h4>PluginManager.unloadPlugin</h4>
<b>unloadPlugin</b>(<i>name</i>)
<p>
        Public method to unload a plugin module.
</p><dl>
<dt><i>name</i></dt>
<dd>
name of the module to be unloaded (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
flag indicating success (boolean)
</dd>
</dl>
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