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e0 f d& � � YZ1 d' � Z2 d( � Z3 e4 d) k r�e r|e3 � n e2 � n d S(* s� Subprocesses with accessible I/O streams
This module allows you to spawn processes, connect to their
input/output/error pipes, and obtain their return codes.
For a complete description of this module see the Python documentation.
Main API
========
call(...): Runs a command, waits for it to complete, then returns
the return code.
check_call(...): Same as call() but raises CalledProcessError()
if return code is not 0
check_output(...): Same as check_call() but returns the contents of
stdout instead of a return code
Popen(...): A class for flexibly executing a command in a new process
Constants
---------
PIPE: Special value that indicates a pipe should be created
STDOUT: Special value that indicates that stderr should go to stdout
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Attributes:
cmd, returncode, output
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c O s t | | � j � S( s� Run command with arguments. Wait for command to complete, then
return the returncode attribute.
The arguments are the same as for the Popen constructor. Example:
retcode = call(["ls", "-l"])
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The arguments are the same as for the Popen constructor. Example:
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The arguments are the same as for the Popen constructor. Example:
>>> check_output(["ls", "-l", "/dev/null"])
'crw-rw-rw- 1 root root 1, 3 Oct 18 2007 /dev/null\n'
The stdout argument is not allowed as it is used internally.
To capture standard error in the result, use stderr=STDOUT.
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... stderr=STDOUT)
'ls: non_existent_file: No such file or directory\n'
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For a complete description of the arguments see the Python documentation.
Arguments:
args: A string, or a sequence of program arguments.
bufsize: supplied as the buffering argument to the open() function when
creating the stdin/stdout/stderr pipe file objects
executable: A replacement program to execute.
stdin, stdout and stderr: These specify the executed programs' standard
input, standard output and standard error file handles, respectively.
preexec_fn: (POSIX only) An object to be called in the child process
just before the child is executed.
close_fds: Controls closing or inheriting of file descriptors.
shell: If true, the command will be executed through the shell.
cwd: Sets the current directory before the child is executed.
env: Defines the environment variables for the new process.
universal_newlines: If true, use universal line endings for file
objects stdin, stdout and stderr.
startupinfo and creationflags (Windows only)
Attributes:
stdin, stdout, stderr, pid, returncode
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� | | f S| j | � S( sf Interact with process: Send data to stdin. Read data from
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