Using a breakpoint just on a for statement causes an error

[LuisKaizen75]

Type: Bug

Behaviour

If I put a a breakpoint in the line where my for is, then I get the following exception:

"for doc in documentos:
TypeError: an integer is required"

This happends for the second iteration, the first always works.

If I run debugger without the breakpoint or I don't use the debugger the code runs as expected.

Steps to reproduce:

1. Place a breakpoint on the for statement of a code like the next one.

documentos = data['llave'].unique() #A int64 numpy array

for doc in documentos: #<---- breakpoint here
data_header = data_h[data_h['llave'] == doc]
data_rows = data_r[data_r['llave'] == doc]
file_path = f"pdfs/{data_header.iloc[0]['DocNum']}_{doc}.pdf"

Diagnostic data

launch.json configuration

XXX

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

Traceback (most recent call last):
  File "c:\Users\lgarzon\AppData\Local\Programs\Python\Python312\Lib\runpy.py", line 198, in _run_module_as_main
    return _run_code(code, main_globals, None,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "c:\Users\lgarzon\AppData\Local\Programs\Python\Python312\Lib\runpy.py", line 88, in _run_code
    exec(code, run_globals)
  File "c:\Users\lgarzon\.vscode\extensions\ms-python.debugpy-2024.12.0-win32-x64\bundled\libs\debugpy\adapter/../..\debugpy\launcher/../..\debugpy\__main__.py", line 71, in <module>
    cli.main()
  File "c:\Users\lgarzon\.vscode\extensions\ms-python.debugpy-2024.12.0-win32-x64\bundled\libs\debugpy\adapter/../..\debugpy\launcher/../..\debugpy/..\debugpy\server\cli.py", line 501, in main
    run()
  File "c:\Users\lgarzon\.vscode\extensions\ms-python.debugpy-2024.12.0-win32-x64\bundled\libs\debugpy\adapter/../..\debugpy\launcher/../..\debugpy/..\debugpy\server\cli.py", line 351, in run_file
    runpy.run_path(target, run_name="__main__")
  File "c:\Users\lgarzon\.vscode\extensions\ms-python.debugpy-2024.12.0-win32-x64\bundled\libs\debugpy\_vendored\pydevd\_pydevd_bundle\pydevd_runpy.py", line 310, in run_path
odule_code
    _run_code(code, mod_globals, init_globals, mod_name, mod_spec, pkg_name, script_name)
  File "c:\Users\lgarzon\.vscode\extensions\ms-python.debugpy-2024.12.0-win32-x64\bundled\libs\debugpy\_vendored\pydevd\_pydevd_bundle\pydevd_runpy.py", l    _run_code(code, mod_globals, init_globals, mod_name, mod_spec, pkg_name, script_name)
  File "c:\Users\lgarzon\.vscode\extensions\ms-python.debugpy-2024.12.0-win32-x64\bundled\libs\debugpy\_vendored\pydevd\_pydevd_bundle\pydevd_runpy.py", line 118, in _run_code
    exec(code, run_globals)
  File "_pydevd_sys_monitoring\\_pydevd_sys_monitoring_cython.pyx", line 1367, in _pydevd_sys_monitoring_cython._jump_event
TypeError: an integer is required

Output for Python Debugger in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python Debugger)

XXX

Extension version: 2024.12.0
VS Code version: Code 1.95.3 (f1a4fb101478ce6ec82fe9627c43efbf9e98c813, 2024-11-13T14:50:04.152Z)
OS version: Windows_NT x64 10.0.26100
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.4
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Unknown

System Info

Item	Value
CPUs	11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz (8 x 2803)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	15.71GB (3.65GB free)
Process Argv	--crash-reporter-id 27d35222-11e5-402f-9b11-4e57cb108ed5
Screen Reader	no
VM	0%

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyt551:31179978
vscod805cf:30301675
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
962ge761:30959799
pythonnoceb:30805159
asynctok:30898717
pythonmypyd1:30879173
h48ei257:31000450
pythontbext0:30879054
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
da93g388:31013173
dvdeprecation:31068756
dwnewjupyter:31046869
newcmakeconfigv2:31071590
nativerepl1:31139838
pythonrstrctxt:31112756
cf971741:31144450
iacca1:31171482
notype1:31157159
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530

[rchiodo]

Thanks for the issue. This is a dupe of #1733 which is fixed in the latest release of debugpy and the latest release of the vscode-python-debugger extension. Please upgrade to the latest prelease version.