Merge branch 'main' into pdb-target-refactor

Lib/pdb.py

@@ -86,8 +86,8 @@
 import linecache
 
 from contextlib import contextmanager
+from rlcompleter import Completer
 from types import CodeType
-from typing import Union
 
 
 class Restart(Exception):
@@ -177,9 +177,6 @@ def __init__(self, target):
         if not sys.flags.safe_path:
             sys.path[0] = os.path.dirname(self._target)
 
-        with io.open_code(self._target) as fp:
-            self._code = f"exec(compile({fp.read()!r}, {self._target!r}, 'exec'))"
-
     def __repr__(self):
         return self._target
 
@@ -189,7 +186,9 @@ def filename(self):
 
     @property
     def code(self):
-        return self._code
+        # We need to open the file each time because the file may be modified
+        with io.open_code(self._target) as fp:
+            return f"exec(compile({fp.read()!r}, {self._target!r}, 'exec'))"
 
     @property
     def namespace(self):