Mar 3, 2026 · Mar 4, 2026 · Mar 3, 2026
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-03-03-21-45-16.gh-issue-124241._GLhVo.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-03-03-21-45-16.gh-issue-124241._GLhVo.rst
 On POSIX, we now try to read the symlink target from ``/proc/self/exe`` to
 determine:data:`sys.executable`.
diff --git a/Modules/getpath.py b/Modules/getpath.py
 ifnotexecutable:
 executable=real_executable

 ifnotexecutableandos_name=='posix':
 # On Linux, try resolving the executable path via procfs
 try:
 executable=realpath('/proc/self/exe')
 except (OSError,MemoryError):
 pass

 ifnotexecutableandSEPinprogram_name:
 # Resolve partial path program_name against current directory
 executable=abspath(program_name)
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		On POSIX, we now try to read the symlink target from ``/proc/self/exe`` to
		determine:data:`sys.executable`.
Original file line number	Diff line number	Diff line change
Expand Up		@@ -265,6 +265,13 @@ def search_up(prefix, *landmarks, test=isfile):
		ifnotexecutable:
		executable=real_executable

		ifnotexecutableandos_name=='posix':
		# On Linux, try resolving the executable path via procfs
		try:
		executable=realpath('/proc/self/exe')
Copy link Member vstinnerMar 4, 2026 Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. `realpath()` returns`/proc/self/exe` unmodified if it cannot resolve the symlink. I would prefer using`readlink()` here. But it requires more work, since`Modules/getpath.c` doesn't implement it here. I can help implementing`readlink()` in`getpath.c` if you want.
		except (OSError,MemoryError):
		pass
Comment on lines +268 to +273 Copy link MemberAuthor FFY00Mar 3, 2026 Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. Humm, perhaps we should do this after trying`program_name`, and only update the value if the executable path derived from`program_name` doesn't resolve to the same path as`/proc/self/exe`. If`progam_name` is set and resolves to the same path as`/proc/self/exe`, honoring its value should be nicer.

		ifnotexecutableandSEPinprogram_name:
		# Resolve partial path program_name against current directory
		executable=abspath(program_name)
Expand Down