https://github.com/python/cpython/commit/dc27218225fc3cfc452c46764e7cb0c1a52792b3
commit: dc27218225fc3cfc452c46764e7cb0c1a52792b3
branch: main
author: FredericDT <git...@fdt.onl>
committer: gaogaotiantian <gaogaotiant...@hotmail.com>
date: 2025-07-24T09:58:54+09:00
summary:
gh-136980: Remove unused C tracing code in bdb (#136981)
files:
A Misc/NEWS.d/next/Library/2025-07-23-11-59-48.gh-issue-136980.BIJzkB.rst
M Doc/library/bdb.rst
M Lib/bdb.py
diff --git a/Doc/library/bdb.rst b/Doc/library/bdb.rst
index 90f042aa377711..c7a3e0c596b9d0 100644
--- a/Doc/library/bdb.rst
+++ b/Doc/library/bdb.rst
@@ -192,12 +192,8 @@ The :mod:`bdb` module also defines two classes:
entered.
* ``"return"``: A function or other code block is about to return.
* ``"exception"``: An exception has occurred.
- * ``"c_call"``: A C function is about to be called.
- * ``"c_return"``: A C function has returned.
- * ``"c_exception"``: A C function has raised an exception.
- For the Python events, specialized functions (see below) are called. For
- the C events, no action is taken.
+ For all the events, specialized functions (see below) are called.
The *arg* parameter depends on the previous event.
diff --git a/Lib/bdb.py b/Lib/bdb.py
index 4290ef22302a42..efc3e0a235ac8e 100644
--- a/Lib/bdb.py
+++ b/Lib/bdb.py
@@ -267,12 +267,9 @@ def trace_dispatch(self, frame, event, arg):
is entered.
return: A function or other code block is about to return.
exception: An exception has occurred.
- c_call: A C function is about to be called.
- c_return: A C function has returned.
- c_exception: A C function has raised an exception.
- For the Python events, specialized functions (see the dispatch_*()
- methods) are called. For the C events, no action is taken.
+ For all the events, specialized functions (see the dispatch_*()
+ methods) are called.
The arg parameter depends on the previous event.
"""
@@ -288,12 +285,6 @@ def trace_dispatch(self, frame, event, arg):
return self.dispatch_return(frame, arg)
if event == 'exception':
return self.dispatch_exception(frame, arg)
- if event == 'c_call':
- return self.trace_dispatch
- if event == 'c_exception':
- return self.trace_dispatch
- if event == 'c_return':
- return self.trace_dispatch
if event == 'opcode':
return self.dispatch_opcode(frame, arg)
print('bdb.Bdb.dispatch: unknown debugging event:', repr(event))
diff --git
a/Misc/NEWS.d/next/Library/2025-07-23-11-59-48.gh-issue-136980.BIJzkB.rst
b/Misc/NEWS.d/next/Library/2025-07-23-11-59-48.gh-issue-136980.BIJzkB.rst
new file mode 100644
index 00000000000000..a7111dd2b865ba
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-07-23-11-59-48.gh-issue-136980.BIJzkB.rst
@@ -0,0 +1 @@
+Remove unused C tracing code in bdb for event type ``c_call``, ``c_return``
and ``c_exception``
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