Aug 28, 2023 · Jul 12, 2023 · Aug 16, 2023 · Aug 23, 2023 · Aug 23, 2023 · Aug 24, 2023
diff --git a/Doc/library/pdb.rst b/Doc/library/pdb.rst

   Print the return value for the last return of the current function.

 .. versionadded:: 3.7
 .. pdbcommand:: exceptions [excnumber]

   List or jump between chained exceptions.
diff --git a/Lib/pdb.py b/Lib/pdb.py


 class Pdb(bdb.Bdb, cmd.Cmd):
    # the max number of chained exceptions + exception groups we accept to navigate.
    _previous_sigint_handler = None

    # Limit the maximum depth of chained exceptions, we should be handling cycles,

    def interaction(self, frame, tb_or_exc):
        # Restore the previous signal handler at the Pdb prompt.
        if Pdb._previous_sigint_handler:
            try:
                signal.signal(signal.SIGINT, Pdb._previous_sigint_handler)
            except ValueError:  # ValueError: signal only works in main thread
                pass
            else:
                Pdb._previous_sigint_handler = None

        _chained_exceptions, tb = self._get_tb_and_exceptions(tb_or_exc)
        with self._hold_exceptions(_chained_exceptions):
            if Pdb._previous_sigint_handler:
                try:
                    signal.signal(signal.SIGINT, Pdb._previous_sigint_handler)
                except ValueError:  # ValueError: signal only works in main thread
                    pass
                else:
                    Pdb._previous_sigint_handler = None
            if self.setup(frame, tb):
                # no interaction desired at this time (happens if .pdbrc contains
                # a command like "continue")
Original file line number	Diff line number	Diff line change
Expand Up		@@ -639,6 +639,7 @@ can be overridden by the local file.

		Print the return value for the last return of the current function.

		.. versionadded:: 3.7
		.. pdbcommand:: exceptions [excnumber]
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		List or jump between chained exceptions.
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Original file line number	Diff line number	Diff line change
Expand Up		@@ -209,7 +209,6 @@ def namespace(self):


		class Pdb(bdb.Bdb, cmd.Cmd):
		# the max number of chained exceptions + exception groups we accept to navigate.
		_previous_sigint_handler = None

		# Limit the maximum depth of chained exceptions, we should be handling cycles,
Expand DownExpand Up		@@ -483,15 +482,16 @@ def _hold_exceptions(self, exceptions):

		def interaction(self, frame, tb_or_exc):
		# Restore the previous signal handler at the Pdb prompt.
		if Pdb._previous_sigint_handler:
		try:
		signal.signal(signal.SIGINT, Pdb._previous_sigint_handler)
		except ValueError: # ValueError: signal only works in main thread
		pass
		else:
		Pdb._previous_sigint_handler = None

		_chained_exceptions, tb = self._get_tb_and_exceptions(tb_or_exc)
		with self._hold_exceptions(_chained_exceptions):
		if Pdb._previous_sigint_handler:
		try:
		signal.signal(signal.SIGINT, Pdb._previous_sigint_handler)
		except ValueError: # ValueError: signal only works in main thread
		pass
		else:
		Pdb._previous_sigint_handler = None
		if self.setup(frame, tb):
		# no interaction desired at this time (happens if .pdbrc contains
		# a command like "continue")
Expand Down