ignore ipdb warning, running stale stale code until the program is rerun

Question

Suddenly I am seeing warnings from the IPython debugger ipdb that my code is stale, however editing / saving code while debugging is a common use case so this warning is not helpful.

*** WARNING: file <path-to-file.py> was edited, running stale code until the program is rerun

The message appears when I use the following in <path-to-file.py> as a debug breakpoint.

from ipdb import set_trace
...
set_trace()

IPython will stop at the debug breakpoint, then after editing / saving <path-to-file.py> the warning message begins to appear in the debugger console. Looking to completely disable this warning.

ipdb 0.13.13 ipython 8.28.0

Edward K. Ream · Accepted Answer · 2025-01-08 09:59:33Z

0

I am seeing the same behavior on both Python 3.12 and 3.13 as the result of the following code:

scriptFile = self.writeScriptFile(script)
exec(compile(script, scriptFile, 'exec'), d)

where the script contains a breakpoint statement.

I fixed the problem as follows in writeScriptFile:

mod_time = os.path.getmtime(path)                  # New
with open(path, encoding='utf-8', mode='w') as f:  # Existing
    f.write(script)                                # Existing
os.utime(path, (mod_time, mod_time))               # New

HTH

answered Jan 8 at 9:59

Edward K. Ream

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1 Comment

Russell Burdt Jan 8 at 19:37

Thank you for looking into this! Can you please share those file locations relative to the environment path.

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