bpo-40492: Fix --outfile with relative path when the program changes it working dir (GH-19910)

1 files changed, 5 insertions, 0 deletions

diff --git a/Lib/cProfile.py b/Lib/cProfile.py
index 4f20203..59b4699 100755
--- a/Lib/cProfile.py
+++ b/Lib/cProfile.py
@@ -152,6 +152,11 @@ def main():
     (options, args) = parser.parse_args()
     sys.argv[:] = args
 
+    # The script that we're profiling may chdir, so capture the absolute path
+    # to the output file at startup.
+    if options.outfile is not None:
+        options.outfile = os.path.abspath(options.outfile)
+
     if len(args) > 0:
         if options.module:
             code = "run_module(modname, run_name='__main__')"