class documentation
        
        class Shell:
Known subclasses: igraph.app.shell.ClassicPythonShell, igraph.app.shell.IDLEShell, igraph.app.shell.IPythonShell
Superclass of the embeddable shells supported by igraph
| Method | __call__ | Undocumented | 
| Method | __init__ | Undocumented | 
| Method | get | Returns the progress handler (if exists) or None (if not). | 
| Method | get | Returns the status handler (if exists) or None (if not). | 
| Method | supports | Checks whether the shell supports progress bars. | 
| Method | supports | Checks whether the shell supports status messages. | 
overridden in 
    igraph.app.shell.ClassicPythonShell, igraph.app.shell.IDLEShell, igraph.app.shell.IPythonShellUndocumented
overridden in 
    igraph.app.shell.ClassicPythonShell, igraph.app.shell.IDLEShell, igraph.app.shell.IPythonShellUndocumented
Checks whether the shell supports progress bars.
This is done by checking for the existence of an attribute called _progress_handler.