diff options
Diffstat (limited to 'Doc/library/os.rst')
| -rw-r--r-- | Doc/library/os.rst | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 221596c..9e14003 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -1215,7 +1215,13 @@ to be ignored. These functions all execute a new program, replacing the current process; they do not return. On Unix, the new executable is loaded into the current process, and will have the same process id as the caller. Errors will be reported as - :exc:`OSError` exceptions. + :exc:`OSError` exceptions. + + The current process is replaced immediately. Open file objects and + descriptors are not flushed, so if there may be data buffered + on these open files, you should flush them using + :func:`sys.stdout.flush` or :func:`os.fsync` before calling an + :func:`exec\*` function. The "l" and "v" variants of the :func:`exec\*` functions differ in how command-line arguments are passed. The "l" variants are perhaps the easiest @@ -1241,8 +1247,9 @@ to be ignored. used to define the environment variables for the new process (these are used instead of the current process' environment); the functions :func:`execl`, :func:`execlp`, :func:`execv`, and :func:`execvp` all cause the new process to - inherit the environment of the current process. Availability: Unix, - Windows. + inherit the environment of the current process. + + Availability: Unix, Windows. .. function:: _exit(n) |