[3.8] bpo-38598: Do not try to compile IDLE shell or output windows (GH-16939)

Lib/idlelib/runscript.py

@@ -19,6 +19,7 @@
 from idlelib import macosx
 from idlelib import pyshell
 from idlelib.query import CustomRun
+from idlelib import outwin
 
 indent_message = """Error: Inconsistent indentation detected!
 
@@ -46,6 +47,9 @@ def __init__(self, editwin):
             self.editwin.text_frame.bind('<<run-module-event-2>>', self._run_module_event)
 
     def check_module_event(self, event):
+        if isinstance(self.editwin, outwin.OutputWindow):
+            self.editwin.text.bell()
+            return 'break'
         filename = self.getfilename()
         if not filename:
             return 'break'
@@ -129,6 +133,9 @@ def _run_module_event(self, event, *, customize=False):
         module being executed and also add that directory to its
         sys.path if not already included.
         """
+        if isinstance(self.editwin, outwin.OutputWindow):
+            self.editwin.text.bell()
+            return 'break'
         filename = self.getfilename()
         if not filename:
             return 'break'

Misc/NEWS.d/next/IDLE/2019-10-26-18-16-24.bpo-38598.6kH9FY.rst

@@ -0,0 +1 @@
+Do not try to compile IDLE shell or output windows