Write-Python-Plugin.md

@@ -6,16 +6,53 @@ Documents\AnyWave\Plugins\Python on Windows.
 /users/username/AnyWave/Plugins/Python on macOS.   
 
 # Requirements
-A python local installation or a virtual environment located in the AnyWave/Plugin/Python/venv folder.   
-The folder is created the first time AnyWave is launched.   
-A good practice is to create a py venv using classic python -m venv command  
+A python local installation or a virtual environment located in the AnyWave/Plugins/Python/venv folder.   
+The Plugins/Python/venv folder is created the first time AnyWave is launched.   
+A good practice is to create it using the classic python -m venv command  
 Place the venv in the folder mentioned earlier and AnyWave will detect it when starting.   
 
+## anywave package
+The virtual environment must have the anywave-plugin-api  package.   
+````python
+pip install anywave-plugin-api
+````
+
 # Use the Plugin Creation Assistant
 ![image](uploads/12aad30a7717996badcb3010e0298f72/image.png)   
 
 ![image](uploads/23e581415d4eb9424cb054041ccf3fce/image.png)
 
+Change MATLAB option to Python!    
+
+# What is a Plugin?
+It's a folder placed on Plugins/Python subfolders of AnyWave.   
+When AnyWave starts the first time it creates a folder named AnyWave in the user's home directory.   
+In the AnyWave folder you will find a Plugins\MATLAB folder.   
+Create a directory for you plugin in that location or use the Plugin Creation Assistant (see previous section).  
+ 
+## desc.txt
+A file called desct.txt must be put in your Plugin.   
+This file is a simple text file that must contain the following lines:   
+*name = My Plugin*  
+*description = Do something on data*   
+When using the Plugin Creation Assistant, the file is created for you.    
+
+### optional lines
+To tune up the behavior of your plugin you may add some flags to tell AnyWave what you plugin can do:      
+*flags=nodatarequired*        ->  this line will inform anywave that your plugin can run even if no data file is open.      
+*flags=canrunfromcommandline*  ->  this flag indicates that your plugin can be run from the command line.   
+You can combine flags by separating them with a colon (:)       
+flags=nodatarequired:canrunfromcommandline
+
+Put your plugin in a submenu, by adding the following line:   
+*category=Process:MyCategory:My plugin*   
+This line will create a sub menu called MyCategory in the Processes Menu of AnyWave and a link to launch the plugin.  
+
+## __main__.py
+A filed called __main__.py must also be put in your Plugin.     
+This file along with desc.txt file will make your folder an AnyWave Python plugin.      
+When using the Plugin Creation Assistant, the file is created for you.   
+
 
 ## [DEBUG Python plugin](/anywave/documentation/-/wikis/Python_debug)