gh-132737: Support profiling modules that require __main___ (#132738)

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Aneesh Durg 2025-04-24 13:41:01 -05:00 committed by GitHub
parent e1c09fff05
commit c7a7aa9a57
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3 changed files with 29 additions and 3 deletions

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@ -6,6 +6,7 @@ __all__ = ["run", "runctx", "Profile"]
import _lsprof
import importlib.machinery
import importlib.util
import io
import profile as _pyprofile
@ -173,13 +174,22 @@ def main():
code = compile(fp.read(), progname, 'exec')
spec = importlib.machinery.ModuleSpec(name='__main__', loader=None,
origin=progname)
globs = {
module = importlib.util.module_from_spec(spec)
# Set __main__ so that importing __main__ in the profiled code will
# return the same namespace that the code is executing under.
sys.modules['__main__'] = module
# Ensure that we're using the same __dict__ instance as the module
# for the global variables so that updates to globals are reflected
# in the module's namespace.
globs = module.__dict__
globs.update({
'__spec__': spec,
'__file__': spec.origin,
'__name__': spec.name,
'__package__': None,
'__cached__': None,
}
})
try:
runctx(code, globs, None, options.outfile, options.sort)
except BrokenPipeError as exc: