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-rwxr-xr-xLib/pdb.py10
1 files changed, 7 insertions, 3 deletions
diff --git a/Lib/pdb.py b/Lib/pdb.py
index b11ac0a..4797265 100755
--- a/Lib/pdb.py
+++ b/Lib/pdb.py
@@ -134,6 +134,8 @@ line_prefix = '\n-> ' # Probably a better default
class Pdb(bdb.Bdb, cmd.Cmd):
+ _previous_sigint_handler = None
+
def __init__(self, completekey='tab', stdin=None, stdout=None, skip=None,
nosigint=False):
bdb.Bdb.__init__(self, skip=skip)
@@ -187,8 +189,6 @@ class Pdb(bdb.Bdb, cmd.Cmd):
self.message("\nProgram interrupted. (Use 'cont' to resume).")
self.set_step()
self.set_trace(frame)
- # restore previous signal handler
- signal.signal(signal.SIGINT, self._previous_sigint_handler)
def reset(self):
bdb.Bdb.reset(self)
@@ -337,6 +337,10 @@ class Pdb(bdb.Bdb, cmd.Cmd):
(expr, newvalue, oldvalue))
def interaction(self, frame, traceback):
+ # Restore the previous signal handler at the Pdb prompt.
+ if Pdb._previous_sigint_handler:
+ signal.signal(signal.SIGINT, Pdb._previous_sigint_handler)
+ Pdb._previous_sigint_handler = None
if self.setup(frame, traceback):
# no interaction desired at this time (happens if .pdbrc contains
# a command like "continue")
@@ -1037,7 +1041,7 @@ class Pdb(bdb.Bdb, cmd.Cmd):
"""
if not self.nosigint:
try:
- self._previous_sigint_handler = \
+ Pdb._previous_sigint_handler = \
signal.signal(signal.SIGINT, self.sigint_handler)
except ValueError:
# ValueError happens when do_continue() is invoked from