Improve run_eval based on using.

Author: rocky

trepan/api.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-#   Copyright (C) 2008-2009, 2013-2017, 2019-2021, 2023-2024 Rocky
+#   Copyright (C) 2008-2009, 2013-2017, 2019-2021, 2023-2025 Rocky
 #   Bernstein <rocky@gnu.org>
 #
 #   This program is free software: you can redistribute it and/or modify
@@ -36,14 +36,17 @@
 
 import os
 import sys
+import traceback
 from typing import Callable, Literal, Optional
 
 from trepan.debugger import Trepan, debugger_obj
 from trepan.interfaces.server import ServerInterface
+from trepan.lib.default import DEBUGGER_SETTINGS
 from trepan.post_mortem import post_mortem_excepthook, uncaught_exception
 
 DEFAULT_DEBUG_PORT: Literal = 1955
 
+
 def debug(
     dbg_opts={},
     start_opts=None,
@@ -194,11 +197,20 @@ def debug_for_remote_access():
     """Enter the debugger in a mode that allows connection to it
     outside of the process being debugged.
     """
-    connection_opts = {'IO': 'TCP', 'PORT': os.getenv('TREPAN3K_TCP_PORT', DEFAULT_DEBUG_PORT)}
+    connection_opts = {
+        "IO": "TCP",
+        "PORT": os.getenv("TREPAN3K_TCP_PORT", DEFAULT_DEBUG_PORT),
+    }
     intf = ServerInterface(connection_opts=connection_opts)
-    dbg_opts = {'interface': intf}
-    print(f'Starting {connection_opts["IO"]} server listening on {connection_opts["PORT"]}.', file=sys.stderr)
-    print(f'Use `python3 -m trepan.client --port {connection_opts["PORT"]}` to enter debugger.', file=sys.stderr)
+    dbg_opts = {"interface": intf}
+    print(
+        f'Starting {connection_opts["IO"]} server listening on {connection_opts["PORT"]}.',
+        file=sys.stderr,
+    )
+    print(
+        f'Use `python3 -m trepan.client --port {connection_opts["PORT"]}` to enter debugger.',
+        file=sys.stderr,
+    )
     debug(dbg_opts=dbg_opts, step_ignore=0, level=1)
 
 
@@ -210,7 +222,7 @@ def debugger_on_post_mortem():
 
 def run_eval(
     expression,
-    debug_opts: Optional[dict] = None,
+    debug_opts: Optional[dict] = DEBUGGER_SETTINGS,
     start_opts: Optional[dict] = None,
     globals_: Optional[dict] = None,
     locals_: Optional[dict] = None,
@@ -235,7 +247,7 @@ def run_eval(
         dbg.core.trace_hook_suspend = True
         if start_opts and "tb_fn" in start_opts:
             tb_fn = start_opts["tb_fn"]
-        uncaught_exception(dbg, tb_fn)
+        traceback.print_exc()
     finally:
         dbg.core.trace_hook_suspend = False
     return
@@ -244,7 +256,7 @@ def run_eval(
 def run_call(
     func: Callable,
     *args,
-    debug_opts: Optional[dict] = None,
+    debug_opts: Optional[dict] = DEBUGGER_SETTINGS,
     start_opts: Optional[dict] = None,
     **kwds,
 ):
@@ -265,7 +277,13 @@ def run_call(
     return
 
 
-def run_exec(statement, debug_opts=None, start_opts=None, globals_=None, locals_=None):
+def run_exec(
+    statement,
+    debug_opts: Optional[dict] = DEBUGGER_SETTINGS,
+    start_opts=None,
+    globals_=None,
+    locals_=None,
+):
     """Execute the statement (given as a string) under debugger
     control starting with the statement subsequent to the place that
     this run_call appears in your program.

trepan/debugger.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-#   Copyright (C) 2008-2010, 2013-2015, 2018, 2023-2024
+#   Copyright (C) 2008-2010, 2013-2015, 2018, 2023-2025
 #   Rocky Bernstein <rocky@gnu.org>
 #
 #   This program is free software: you can redistribute it and/or modify
@@ -31,7 +31,7 @@
 
 import sys
 import types
-from typing import Any, Callable
+from typing import Any, Callable, Union
 
 import pyficache
 import tracer
@@ -99,10 +99,10 @@ def completer(text: str, state):
 
         # How are I/O for this debugger handled? This should
         # be set before calling DebuggerCore.
-        interface_opts = opts.get("interface_opts", {
-            "debugger_name": "trepan3k",
-            "readline": opts.get("readline")
-        })
+        interface_opts = opts.get(
+            "interface_opts",
+            {"debugger_name": "trepan3k", "readline": opts.get("readline")},
+        )
         if "complete" not in interface_opts:
             interface_opts["complete"] = completer
 
@@ -239,7 +239,13 @@ def run_call(self, func: Callable, *args, start_opts=None, **kwds):
             self.core.stop()
         return res
 
-    def run_eval(self, expr, start_opts=None, globals_=None, locals_=None):
+    def run_eval(
+        self,
+        expr: Union[str, types.CodeType],
+        start_opts=None,
+        globals_=None,
+        locals_=None,
+    ):
         """Run debugger on string `expr' which will executed via the
         built-in Python function: eval; `globals_' and `locals_' are
         the dictionaries to use for local and global variables. If
@@ -250,6 +256,12 @@ def run_eval(self, expr, start_opts=None, globals_=None, locals_=None):
         See also `run_call' if what you to debug a function call and
         `run' if you want to debug general Python statements.
         """
+        if not isinstance(expr, (str, types.CodeType)):
+            self.intf[0].errmsg(
+                "You need to pass either a string or a code type."
+            )
+            return
+
         if globals_ is None:
             globals_ = globals()
         if locals_ is None: