bpo-42005: profile and cProfile catch BrokenPipeError (GH-22643)

(cherry picked from commit 3554fa4) Co-authored-by: Zhiming Wang <i@zhimingwang.org>

Author: miss-islington

Lib/cProfile.py

@@ -175,7 +175,12 @@ def main():
  '__package__': None,
  '__cached__': None,
  }
- runctx(code, globs, None, options.outfile, options.sort)
+ try:
+ runctx(code, globs, None, options.outfile, options.sort)
+ except BrokenPipeError as exc:
+ # Prevent "Exception ignored" during interpreter shutdown.
+ sys.stdout = None
+ sys.exit(exc.errno)
  else:
  parser.print_usage()
  return parser

Lib/profile.py

@@ -595,7 +595,12 @@ def main():
  '__package__': None,
  '__cached__': None,
  }
- runctx(code, globs, None, options.outfile, options.sort)
+ try:
+ runctx(code, globs, None, options.outfile, options.sort)
+ except BrokenPipeError as exc:
+ # Prevent "Exception ignored" during interpreter shutdown.
+ sys.stdout = None
+ sys.exit(exc.errno)
  else:
  parser.print_usage()
  return parser

Misc/NEWS.d/next/Library/2020-10-11-13-48-03.bpo-42005.Jq6Az-.rst

@@ -0,0 +1,2 @@
+Fix CLI of :mod:`cProfile` and :mod:`profile` to catch
+:exc:`BrokenPipeError`.