Dynamically load other python modules to your project
Project description
Simple Python Plugin Loader
This module provides a simple way to dynamically load other Python modules as Plugins to your current project.
Install
You can install this python module via pip:
pip install simple-plugin-loader
Otherwise the module can be downloaded from PyPI: https://pypi.org/project/simple-plugin-loader/
Usage
- Import the module:
from simple_plugin_loader import Loader
- Load your plugins/modules:
# initialize the loader loader = Loader() # load your plugins plugins = loader.load_plugins(<plugin_path>, <plugin_base_class>, <specific_plugins>, <recursive>, <verbose>)
- (Optional) The already loaded plugins/modules can be accessed via the
plugins
property of the loader instance:plugins = loader.plugins
load_plugins(...)
Method
This method does the actual plugin loading.
It loads only Python modules that can be executed in the current environment. If a module e.g. contains syntax errors or depends on other not installed Python modules, it will be skipped. So the main program does not fail completely.
Arguments
<plugin_path>
: str
This string represents the path (relative or absolute) to the directory from where the plugins/modules should be loaded.<plugin_base_class>
: class (Default:SamplePlugin
)
The Loader does not load all found modules that are in the above directory. It only loads classes that are sub-classes of the here specified class.
The default value of this argument is theSamplePlugin
class. You can use this class as the base class for your plugins:from simple_plugin_loader.sample_plugin import SamplePlugin class YourPlugin(SamplePlugin): pass
<specific_plugins>
: List[str] (Default:[]
)
This list can contain case sensitive class names, that should be loaded. Then no other plugins will be loaded. The argument<plugin_base_class>
will also be ignored, so any class can be loaded.<recursive>
: bool (Default:False
)
Set this flag toTrue
if you wish to load plugins/modules recursively to the above directory.<verbose>
: bool (Default:False
)
This flag controls the debug output of this method. If enabled, information about (not) loaded plugins/modules are printed.
Return value
The method returns a dictionary that has the following structure:
- Key: The name of the plugin/module. This name is the module name of the module that contains the plugin class.
- Value: The plugin class. Not an instance!
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