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gh-111744: Makebreakpoint() enter the debugger immediately#118579

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Merged
brandtbucher merged 6 commits intopython:mainfromgaogaotiantian:pdb-breakpoint
May 5, 2024
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7 changes: 5 additions & 2 deletionsDoc/library/pdb.rst
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Original file line numberDiff line numberDiff line change
Expand Up@@ -62,8 +62,8 @@ running without the debugger using the :pdbcmd:`continue` command.

The debugger's prompt is ``(Pdb)``, which is the indicator that you are in debug mode::

> ...(3)double()
->return x * 2
> ...(2)double()
->breakpoint()
(Pdb) p x
3
(Pdb) continue
Expand DownExpand Up@@ -164,6 +164,9 @@ slightly different way:
.. versionchanged:: 3.7
The keyword-only argument *header*.

.. versionchanged:: 3.13
:func:`set_trace` will enter the debugger immediately after the call,
rather than before the next line of code is executed.

.. function:: post_mortem(traceback=None)

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4 changes: 4 additions & 0 deletionsDoc/whatsnew/3.13.rst
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Expand Up@@ -710,6 +710,10 @@ pdb
* :mod:`zipapp` is supported as a debugging target.
(Contributed by Tian Gao in :gh:`118501`.)

* ``breakpoint()`` and ``pdb.set_trace()`` now enter the debugger immediately
after the call rather than before the next line is executed.
(Contributed by Tian Gao in :gh:`118579`.)

queue
-----

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2 changes: 1 addition & 1 deletionLib/bdb.py
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Expand Up@@ -378,7 +378,7 @@ def set_trace(self, frame=None):
# We need f_trace_lines == True for the debugger to work
frame.f_trace_lines=True
frame=frame.f_back
self.set_step()
self.set_stepinstr()
sys.settrace(self.trace_dispatch)

defset_continue(self):
Expand Down
2 changes: 2 additions & 0 deletionsLib/pdb.py
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Expand Up@@ -431,6 +431,8 @@ def user_line(self, frame):
ifself.bp_commands(frame):
self.interaction(frame,None)

user_opcode=user_line

defbp_commands(self,frame):
"""Call every command that was set for the current active breakpoint
(if there is one).
Expand Down
14 changes: 10 additions & 4 deletionsLib/test/test_doctest/test_doctest.py
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Expand Up@@ -2056,8 +2056,7 @@ def test_pdb_set_trace():
>>> try: runner.run(test)
... finally: sys.stdin = real_stdin
--Return--
> <doctest foo-bar@baz[2]>(1)<module>()->None
> <doctest foo-bar@baz[2]>(1)<module>()
-> import pdb; pdb.set_trace()
(Pdb) print(x)
42
Expand DownExpand Up@@ -2087,8 +2086,7 @@ def test_pdb_set_trace():
... runner.run(test)
... finally:
... sys.stdin = real_stdin
--Return--
> <doctest test.test_doctest.test_doctest.test_pdb_set_trace[9]>(3)calls_set_trace()->None
> <doctest test.test_doctest.test_doctest.test_pdb_set_trace[9]>(3)calls_set_trace()
-> import pdb; pdb.set_trace()
(Pdb) print(y)
2
Expand All@@ -2114,6 +2112,7 @@ def test_pdb_set_trace():
>>> test = parser.get_doctest(doc, globals(), "foo-bar@baz", "foo-bar@baz.py", 0)
>>> real_stdin = sys.stdin
>>> sys.stdin = FakeInput([
... 'step', # return event of g
... 'list', # list source from example 2
... 'next', # return from g()
... 'list', # list source from example 1
Expand All@@ -2124,6 +2123,9 @@ def test_pdb_set_trace():
>>> try: runner.run(test)
... finally: sys.stdin = real_stdin
... # doctest: +NORMALIZE_WHITESPACE
> <doctest foo-bar@baz[1]>(3)g()
-> import pdb; pdb.set_trace()
(Pdb) step
--Return--
> <doctest foo-bar@baz[1]>(3)g()->None
-> import pdb; pdb.set_trace()
Expand DownExpand Up@@ -2188,6 +2190,7 @@ def test_pdb_set_trace_nested():
>>> test = parser.get_doctest(doc, globals(), "foo-bar@baz", "foo-bar@baz.py", 0)
>>> real_stdin = sys.stdin
>>> sys.stdin = FakeInput([
... 'step',
... 'print(y)', # print data defined in the function
... 'step', 'step', 'step', 'step', 'step', 'step', 'print(z)',
... 'up', 'print(x)',
Expand All@@ -2201,6 +2204,9 @@ def test_pdb_set_trace_nested():
... finally:
... sys.stdin = real_stdin
... # doctest: +REPORT_NDIFF
> <doctest test.test_doctest.test_doctest.test_pdb_set_trace_nested[0]>(4)calls_set_trace()
-> import pdb; pdb.set_trace()
(Pdb) step
> <doctest test.test_doctest.test_doctest.test_pdb_set_trace_nested[0]>(5)calls_set_trace()
-> self.f1()
(Pdb) print(y)
Expand Down
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