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d g Z e r=d d l m! Z! m" Z" m# Z# m$ Z$ m% Z% m& Z& m' Z' m( Z( e j) d d d d d d! d" d# g � Gd$ d% � d% e* � Z+ g Z, d& d' � Z- d; Z. d< Z/ d= Z0 d+ d, � Z1 d- d d. d � Z2 d/ d � Z3 d- d d0 d � Z4 Gd1 d � d e5 � Z6 d2 d d- d d3 d4 d5 d � Z7 d6 d7 � Z8 d8 d � Z9 d9 d � Z: e5 � Z; Gd: d � d e5 � Z< d S)>a� Subprocesses with accessible I/O streams
This module allows you to spawn processes, connect to their
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For a complete description of this module see the Python documentation.
Main API
========
run(...): Runs a command, waits for it to complete, then returns a
CompletedProcess instance.
Popen(...): A class for flexibly executing a command in a new process
Constants
---------
DEVNULL: Special value that indicates that os.devnull should be used
PIPE: Special value that indicates a pipe should be created
STDOUT: Special value that indicates that stderr should go to stdout
Older 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
getoutput(...): Runs a command in the shell, waits for it to complete,
then returns the output
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c O sM t | | � } | rI | j d � } | d k r: | d } t | | � � d S)aO Run command with arguments. Wait for command to complete. If
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c O sx d | k r t d � � d | k rV | d d k rV | j d d � rL d n d | d <t | d t d | d
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>>> check_output(["ls", "-l", "/dev/null"])
b'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.
>>> check_output(["/bin/sh", "-c",
... "ls -l non_existent_file ; exit 0"],
... stderr=STDOUT)
b'ls: non_existent_file: No such file or directory\n'
There is an additional optional argument, "input", allowing you to
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>>> check_output(["sed", "-e", "s/foo/bar/"],
... input=b"when in the course of fooman events\n")
b'when in the course of barman events\n'
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stdout: The standard output (None if not captured).
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Nc C s( | | _ | | _ | | _ | | _ d S)N)ra r r r )r ra r r r r r r r J s zCompletedProcess.__init__c C s� d j | j � d j | j � g } | j d k rL | j d j | j � � | j d k rt | j d j | j � � d j t | � j d j | � � S)Nz args={!r}zreturncode={!r}z stdout={!r}z stderr={!r}z{}({})z, ) �formatra r r r_ r �typer �join)r ra r r r r; P s zCompletedProcess.__repr__c C s. | j r* t | j | j | j | j � � d S)z6Raise CalledProcessError if the exit code is non-zero.N)r r
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rj rn Fc O s | d k r. d | k r$ t d � � t | d <t | | � �� } y | j | d | �\ } } Wnj t k
r� | j � | j � \ } } t | j | d | d | �� Yn | j � | j � � Yn X| j � } | r| rt | | j d | d | �� Wd QRXt
| j | | | � S)af Run command with arguments and return a CompletedProcess instance.
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If check is True and the exit code was non-zero, it raises a
CalledProcessError. The CalledProcessError object will have the return code
in the returncode attribute, and output & stderr attributes if those streams
were captured.
If timeout is given, and the process takes too long, a TimeoutExpired
exception will be raised.
There is an optional argument "input", allowing you to
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you may not also use the Popen constructor's "stdin" argument, as
it will be used internally.
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N�stdinz/stdin and input arguments may not both be used.r r
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Translate a sequence of arguments into a command line
string, using the same rules as the MS C runtime:
1) Arguments are delimited by white space, which is either a
space or a tab.
2) A string surrounded by double quotation marks is
interpreted as a single argument, regardless of white space
contained within. A quoted string can be embedded in an
argument.
3) A double quotation mark preceded by a backslash is
interpreted as a literal double quotation mark.
4) Backslashes are interpreted literally, unless they
immediately precede a double quotation mark.
5) If backslashes immediately precede a double quotation mark,
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� } | | f S) a� Return (status, output) of executing cmd in a shell.
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The exit status for the command can be interpreted
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>>> import subprocess
>>> subprocess.getstatusoutput('ls /bin/ls')
(0, '/bin/ls')
>>> subprocess.getstatusoutput('cat /bin/junk')
(256, 'cat: /bin/junk: No such file or directory')
>>> subprocess.getstatusoutput('/bin/junk')
(256, 'sh: /bin/junk: not found')
�shellTrk r r NrF �
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'/bin/ls'
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d d � Z d d d d � Z d d � Z d d � Z d d � Z e rnd d � Z d d � Z d! d" � Z d e j e j e j d# d$ � Z d d d% d& � Z d' d( � Z d) d* � Z d+ d, � Z d- d. � Z e Z! n� d/ d � Z d0 d" � Z e" j# e" j$ e" j% e" j& e" j' e" j( d1 d2 � Z) d e" j* e" j+ e, j- d3 d$ � Z d4 d5 � Z. d d d6 d& � Z d7 d* � Z d8 d9 � Z/ d: d, � Z d; d. � Z d< d= � Z! d S)?r a Execute a child program in a new process.
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bufsize: supplied as the buffering argument to the open() function when
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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)
restore_signals (POSIX only)
start_new_session (POSIX only)
pass_fds (POSIX only)
Attributes:
stdin, stdout, stderr, pid, returncode
FrF Nr Tc C s@ t � t j � | _ d | _ d | _ | d k r: d } t | t � sU t d � � t r� | d k rs t
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� | } n d } z | j | | | � \ } } Wd d | _ X| j d | j | � � } | | f S)a4 Interact with process: Send data to stdin. Read data from
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