[3.13] gh-143706: Fix sys.argv not set during multiprocessing forkserver __main__ preload (GH-143717)
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…orkserver `__main__` preload (pythonGH-143717) The forkserver was not passing sys.argv to its main() function, causing sys.argv to be empty during `__main__` module import in child processes. This fixes a non-obvious regression inadvertently introduced by the pythongh-126631 main preloading fix. (cherry picked from commit 298d544)
This was referenced Jan 14, 2026
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The forkserver was not passing sys.argv to its main() function, causing sys.argv to be empty during
__main__module import in child processes. This fixes a non-obvious regression inadvertently introduced by the gh-126631 main preloading fix.(cherry picked from commit 298d544)
sys.argvno longer correct during main module execution usingforkserver#143706