diff options
Diffstat (limited to 'Lib/os.py')
| -rw-r--r-- | Lib/os.py | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -611,6 +611,12 @@ otherwise return -SIG, where SIG is the signal that killed it. """ if _exists("fork"): if not _exists("popen2"): def popen2(cmd, mode="t", bufsize=-1): + """Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' + may be a sequence, in which case arguments will be passed directly to + the program without shell intervention (as with os.spawnv()). If 'cmd' + is a string it will be passed to the shell (as with os.system()). If + 'bufsize' is specified, it sets the buffer size for the I/O pipes. The + file objects (child_stdin, child_stdout) are returned.""" import popen2 stdout, stdin = popen2.popen2(cmd, bufsize) return stdin, stdout @@ -618,6 +624,12 @@ if _exists("fork"): if not _exists("popen3"): def popen3(cmd, mode="t", bufsize=-1): + """Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' + may be a sequence, in which case arguments will be passed directly to + the program without shell intervention (as with os.spawnv()). If 'cmd' + is a string it will be passed to the shell (as with os.system()). If + 'bufsize' is specified, it sets the buffer size for the I/O pipes. The + file objects (child_stdin, child_stdout, child_stderr) are returned.""" import popen2 stdout, stdin, stderr = popen2.popen3(cmd, bufsize) return stdin, stdout, stderr @@ -625,6 +637,12 @@ if _exists("fork"): if not _exists("popen4"): def popen4(cmd, mode="t", bufsize=-1): + """Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' + may be a sequence, in which case arguments will be passed directly to + the program without shell intervention (as with os.spawnv()). If 'cmd' + is a string it will be passed to the shell (as with os.system()). If + 'bufsize' is specified, it sets the buffer size for the I/O pipes. The + file objects (child_stdin, child_stdout_stderr) are returned.""" import popen2 stdout, stdin = popen2.popen4(cmd, bufsize) return stdin, stdout |