Re-direct help() output to console

Keeps a copy of stdin as well, so that re-assigning this in the python
window does't close the output

Fixes https://gitlab.com/kicad/code/kicad/issues/8047

scripting/kicad_pyshell/kicad_pyeditor.py

@@ -907,9 +907,17 @@ class KiCadEditorFrame(KiCadPyFrame):
 class KiCadEditorNotebookFrame(KiCadEditorFrame):
     def __init__(self, parent):
         """Create EditorNotebookFrame instance."""
+
         self.notebook = None
         KiCadEditorFrame.__init__(self, parent)
+
         if self.notebook:
+            """Keep pydoc output on stdout instead of pager and
+                place the stdout into the editor window """
+            import pydoc, sys
+            self._keep_stdin = sys.stdin
+            pydoc.pager = pydoc.plainpager
+
             dispatcher.connect(receiver=self._editorChange,
                                signal='EditorChange', sender=self.notebook)
 
@@ -935,6 +943,7 @@ class KiCadEditorNotebookFrame(KiCadEditorFrame):
         self.setEditor(self.crust.editor)
         self.crust.editor.SetFocus()
 
+
     def _editorChange(self, editor):
         """Editor change signal receiver."""
         if not self: