From f2b7556ef851ac85e7cbf189d1b29fdeb9539b88 Mon Sep 17 00:00:00 2001 From: Steve Dower Date: Fri, 13 Sep 2019 17:40:19 +0100 Subject: bpo-38092: Reduce overhead when using multiprocessing in a Windows virtual environment (GH-16098) https://bugs.python.org/issue38092 --- Lib/multiprocessing/popen_spawn_win32.py | 2 +- Lib/multiprocessing/spawn.py | 2 +- Misc/NEWS.d/next/Windows/2019-09-13-14-11-42.bpo-38092.x31ehI.rst | 1 + 3 files changed, 3 insertions(+), 2 deletions(-) create mode 100644 Misc/NEWS.d/next/Windows/2019-09-13-14-11-42.bpo-38092.x31ehI.rst diff --git a/Lib/multiprocessing/popen_spawn_win32.py b/Lib/multiprocessing/popen_spawn_win32.py index ea9c555..9c4098d 100644 --- a/Lib/multiprocessing/popen_spawn_win32.py +++ b/Lib/multiprocessing/popen_spawn_win32.py @@ -72,7 +72,7 @@ class Popen(object): try: hp, ht, pid, tid = _winapi.CreateProcess( python_exe, cmd, - env, None, False, 0, None, None, None) + None, None, False, 0, env, None, None) _winapi.CloseHandle(ht) except: _winapi.CloseHandle(rhandle) diff --git a/Lib/multiprocessing/spawn.py b/Lib/multiprocessing/spawn.py index 7cc129e..075f345 100644 --- a/Lib/multiprocessing/spawn.py +++ b/Lib/multiprocessing/spawn.py @@ -36,7 +36,7 @@ else: if WINSERVICE: _python_exe = os.path.join(sys.exec_prefix, 'python.exe') else: - _python_exe = sys.executable + _python_exe = sys._base_executable def set_executable(exe): global _python_exe diff --git a/Misc/NEWS.d/next/Windows/2019-09-13-14-11-42.bpo-38092.x31ehI.rst b/Misc/NEWS.d/next/Windows/2019-09-13-14-11-42.bpo-38092.x31ehI.rst new file mode 100644 index 0000000..48e83c8 --- /dev/null +++ b/Misc/NEWS.d/next/Windows/2019-09-13-14-11-42.bpo-38092.x31ehI.rst @@ -0,0 +1 @@ +Reduce overhead when using multiprocessing in a Windows virtual environment. -- cgit v0.12