diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/subprocess.py | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/Lib/subprocess.py b/Lib/subprocess.py index 2300c73..1f6eb63 100644 --- a/Lib/subprocess.py +++ b/Lib/subprocess.py @@ -607,17 +607,17 @@ def getoutput(cmd): def _use_posix_spawn(): - """Check is posix_spawn() can be used for subprocess. + """Check if posix_spawn() can be used for subprocess. - subprocess requires a posix_spawn() implementation that reports properly - errors to the parent process, set errno on the following failures: + subprocess requires a posix_spawn() implementation that properly reports + errors to the parent process, & sets errno on the following failures: - * process attribute actions failed - * file actions failed - * exec() failed + * Process attribute actions failed. + * File actions failed. + * exec() failed. - Prefer an implementation which can use vfork in some cases for best - performances. + Prefer an implementation which can use vfork() in some cases for best + performance. """ if _mswindows or not hasattr(os, 'posix_spawn'): # os.posix_spawn() is not available @@ -642,15 +642,14 @@ def _use_posix_spawn(): # glibc 2.24 has a new Linux posix_spawn implementation using vfork # which properly reports errors to the parent process. return True - # Note: Don't use the POSIX implementation of glibc because it doesn't + # Note: Don't use the implementation in earlier glibc because it doesn't # use vfork (even if glibc 2.26 added a pipe to properly report errors # to the parent process). except (AttributeError, ValueError, OSError): # os.confstr() or CS_GNU_LIBC_VERSION value not available pass - # By default, consider that the implementation does not properly report - # errors. + # By default, assume that posix_spawn() does not properly report errors. return False |