MINI MINI MANI MO
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\ @ s8 d Z ddlZejdkZddlZddlZddlZddlZddlZddl Z ddl
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dgZ erddlm!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#d g G d$d% d%e*Z+g Z,d&d' Z-d<Z.d=Z/d>Z0d+d, Z1d-d. Z2dd/d0dZ3d1d Z4dd/d2dZ5G d3d de6Z7ddd4d5d6dZ8d7d8 Z9d9d Z:d:d Z;e6 Z<G d;d de6Z=dS )?a 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
========
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
getstatusoutput(...): Runs a command in the shell, waits for it to complete,
then returns a (exitcode, output) tuple
NZwin32) monotonicc @ s e Zd ZdS )SubprocessErrorN)__name__
__module__ __qualname__ r r "/usr/lib64/python3.6/subprocess.pyr 9 s r c @ s< e Zd ZdZd
ddZdd Zedd Zejd d ZdS ) CalledProcessErrorzRaised when run() is called with check=True and the process
returns a non-zero exit status.
Attributes:
cmd, returncode, stdout, stderr, output
Nc C s || _ || _|| _|| _d S )N)
returncodecmdoutputstderr)selfr
r r r
r r r __init__C s zCalledProcessError.__init__c C sb | j rN| j dk rNyd| jtj| j f S tk
rJ d| j| j f S X nd| j| j f S d S )Nr zCommand '%s' died with %r.z)Command '%s' died with unknown signal %d.z.Command '%s' returned non-zero exit status %d.)r
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ValueError)r r r r __str__I s zCalledProcessError.__str__c C s | j S )z+Alias for output attribute, to match stderr)r )r r r r stdoutU s zCalledProcessError.stdoutc C s
|| _ d S )N)r )r valuer r r r Z s )NN) r r r __doc__r r propertyr setterr r r r r < s
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ddZdd Zedd Zejd d ZdS ) TimeoutExpiredzThis exception is raised when the timeout expires while waiting for a
child process.
Attributes:
cmd, output, stdout, stderr, timeout
Nc C s || _ || _|| _|| _d S )N)r timeoutr r
)r r r r r
r r r r h s zTimeoutExpired.__init__c C s d| j | jf S )Nz'Command '%s' timed out after %s seconds)r r )r r r r r n s zTimeoutExpired.__str__c C s | j S )N)r )r r r r r r s zTimeoutExpired.stdoutc C s
|| _ d S )N)r )r r r r r r v s )NN) r r r r r r r r r r r r r r a s
r c @ s e Zd ZdZdZdZdZdZdS ) STARTUPINFOr N)r r r dwFlags hStdInput
hStdOutput hStdError wShowWindowr r r r r s
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check_callgetstatusoutput getoutput check_outputrunDEVNULLCompletedProcess)CREATE_NEW_CONSOLECREATE_NEW_PROCESS_GROUPSTD_INPUT_HANDLESTD_OUTPUT_HANDLESTD_ERROR_HANDLESW_HIDESTARTF_USESTDHANDLESSTARTF_USESHOWWINDOWr, r- r. r/ r0 r1 r2 r3 c @ s6 e Zd ZdZejfddZdd Zdd ZeZ eZ
dS ) HandleFc C s | j sd| _ || d S )NT)closed)r CloseHandler r r Close s z Handle.Closec C s | j sd| _ t| S tdd S )NTzalready closed)r5 intr )r r r r Detach s z
Handle.Detachc C s d| j jt| f S )Nz%s(%d)) __class__r r8 )r r r r __repr__ s zHandle.__repr__N) r r r r5 _winapir6 r7 r9 r; __del__r r r r r r4 s r4 c C sT xNt d d D ]>} | jtjd}|d k ryt j| W q tk
rJ Y qX qW d S )N)
_deadstate)_active_internal_pollsysmaxsizeremover )Zinstresr r r _cleanup s rE c C s* g } t jj}|dkr&| jdd| | S )zgReturn a list of command-line arguments reproducing the current
optimization settings in sys.flags.r -O)rA flagsoptimizeappend)argsr r r r "_optim_args_from_interpreter_flags s
rO c C s ddddddd} t }x:| j D ].\}}ttj|}|dkr"|jd || q"W tjjrh|jd
n$tjjrz|jd tjjr|jd x tj D ]}|jd
| qW ttdi }xDdD ]<}||kr|| }|dkr|}n d||f }|j
d|f qW |S )z}Return a list of command-line arguments reproducing the current
settings in sys.flags, sys.warnoptions and sys._xoptions.dBSvbq)debugdont_write_bytecodeno_siteverbose
bytes_warningquietr rI z-Iz-Ez-sz-W _xoptions faulthandler tracemallocshowalloccount showrefcountutf8Tz%s=%sz-X)r] r^ r_ r` ra ) rO itemsgetattrrA rK rM isolatedignore_environment no_user_site warnoptionsextend)Z flag_opt_maprN flagoptrS Zxoptionsr argr r r _args_from_interpreter_flags s:
rl )r c O sF t ||2}y |j| dS |j |j Y nX W dQ R X dS )zRun command with arguments. Wait for command to complete or
timeout, then return the returncode attribute.
The arguments are the same as for the Popen constructor. Example:
retcode = call(["ls", "-l"])
)r N)r! waitkill)r popenargskwargspr r r r$ s c O s6 t | |}|r2|jd}|dkr(| d }t||dS )aO Run command with arguments. Wait for command to complete. If
the exit code was zero then return, otherwise raise
CalledProcessError. The CalledProcessError object will have the
return code in the returncode attribute.
The arguments are the same as for the call function. Example:
check_call(["ls", "-l"])
rN Nr )r$ getr )ro rp retcoder r r r r% ( s
c O sT d|krt dd|kr<|d dkr<|jddr4dnd|d< t|t| d d
|jS ) a( Run command with arguments and return its output.
If the exit code was non-zero it raises a CalledProcessError. The
CalledProcessError object will have the return code in the returncode
attribute and output in the output attribute.
The arguments are the same as for the Popen constructor. Example:
>>> 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
pass a string to the subprocess's stdin. If you use this argument
you may not also use the Popen constructor's "stdin" argument, as
it too will be used internally. Example:
>>> 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'
If universal_newlines=True is passed, the "input" argument must be a
string and the return value will be a string rather than bytes.
r z3stdout argument not allowed, it will be overridden.inputNuniversal_newlinesF T)r r check)r rr r) r" r )r ro rp r r r r( ; s c @ s* e Zd ZdZd ddZdd Zdd ZdS )
r+ aE A process that has finished running.
This is returned by run().
Attributes:
args: The list or str args passed to run().
returncode: The exit code of the process, negative for signals.
stdout: The standard output (None if not captured).
stderr: The standard error (None if not captured).
Nc C s || _ || _|| _|| _d S )N)rN r
r r
)r rN r
r r
r r r r r s zCompletedProcess.__init__c C sh dj | jdj | jg}| jd k r4|jdj | j | jd k rP|jdj | j dj t| jdj|S )Nz args={!r}zreturncode={!r}z stdout={!r}z stderr={!r}z{}({})z, ) formatrN r
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zCompletedProcess.__repr__c C s | j r t| j | j| j| jdS )z6Raise CalledProcessError if the exit code is non-zero.N)r
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)r r r r check_returncode s z!CompletedProcess.check_returncode)NN)r r r r r r; r| r r r r r+ g s
F)rt r rx c O s | dk r d|krt dt|d< t||}y|j| |d\}}W nV tk
r| |j |j \}}t|j|||dY n |j |j Y nX |j }|r|rt ||j||dW dQ R X t
|j|||S )af Run command with arguments and return a CompletedProcess instance.
The returned instance will have attributes args, returncode, stdout and
stderr. By default, stdout and stderr are not captured, and those attributes
will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture them.
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
pass a string to the subprocess's stdin. If you use this argument
you may not also use the Popen constructor's "stdin" argument, as
it will be used internally.
The other arguments are the same as for the Popen constructor.
If universal_newlines=True is passed, the "input" argument must be a
string and stdout/stderr in the returned object will be strings rather than
bytes.
Nstdinz/stdin and input arguments may not both be used.)r )r r
) r r" r! communicater rn rN rm pollr r+ ) rt r rx ro rp Zprocessr r
rs r r r r) s*
c C s g }d}x| D ]}g }|r$|j d d|kp8d|kp8| }|rH|j d xj|D ]b}|dkrf|j | qN|dkr|j dt| d g }|j d qN|r|j| g }|j | qNW |r|j| |r|j| |j d qW dj|S ) a
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,
every pair of backslashes is interpreted as a literal
backslash. If the number of backslashes is odd, the last
backslash escapes the next double quotation mark as
described in rule 3.
F "\rG z\"rv )rM lenrh r{ )seqresultZ needquoterk Zbs_bufcr r r list2cmdline s4
r c C sl yt | ddtd}d}W n. tk
rF } z|j}|j}W Y dd}~X nX |dd dkrd|dd }||fS ) a Return (exitcode, output) of executing cmd in a shell.
Execute the string 'cmd' in a shell with 'check_output' and
return a 2-tuple (status, output). The locale encoding is used
to decode the output and process newlines.
A trailing newline is stripped from the output.
The exit status for the command can be interpreted
according to the rules for the function 'wait'. Example:
>>> import subprocess
>>> subprocess.getstatusoutput('ls /bin/ls')
(0, '/bin/ls')
>>> subprocess.getstatusoutput('cat /bin/junk')
(1, 'cat: /bin/junk: No such file or directory')
>>> subprocess.getstatusoutput('/bin/junk')
(127, 'sh: /bin/junk: not found')
>>> subprocess.getstatusoutput('/bin/kill $$')
(-15, '')
T)shellru r
r NrF
r )r( r# r r r
)r dataZexitcodeZexr r r r& s c C s t | d S )a% Return output (stdout or stderr) of executing cmd in a shell.
Like getstatusoutput(), except the exit status is ignored and the return
value is a string containing the command's output. Example:
>>> import subprocess
>>> subprocess.getoutput('ls /bin/ls')
'/bin/ls'
rF )r& )r r r r r' " s
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fddZdd Zdd Zd@ddZdd Zdd Zd d Zerd d Zd d! Zd"d# Zdejejej fd$d%Z dAd&d'Z d(d) Z d*d+ Z d,d- Z!d.d/ Z"e"Z#nd0d Zd1d# Ze$j%e$j&e$j'e$j(e$j)e$j*fd2d3Z+de$j,e$j-e.j/fd4d%Z d5d6 Z0dBd7d'Z d8d+ Z d9d: Z1d;d- Z!d<d/ Z"d=d> Z#dS )Cr! a Execute a child program in a new process.
For a complete description of the arguments see the Python documentation.
Arguments:
args: A string, or a sequence of program arguments.
bufsize: supplied as the buffering argument to the open() function when
creating the stdin/stdout/stderr pipe file objects
executable: A replacement program to execute.
stdin, stdout and stderr: These specify the executed programs' standard
input, standard output and standard error file handles, respectively.
preexec_fn: (POSIX only) An object to be called in the child process
just before the child is executed.
close_fds: Controls closing or inheriting of file descriptors.
shell: If true, the command will be executed through the shell.
cwd: Sets the current directory before the child is executed.
env: Defines the environment variables for the new process.
universal_newlines: If true, use universal line endings for file
objects stdin, stdout and stderr.
startupinfo and creationflags (Windows only)
restore_signals (POSIX only)
start_new_session (POSIX only)
pass_fds (POSIX only)
encoding and errors: Text mode encoding and error handling to use for
file objects stdin, stdout and stderr.
Attributes:
stdin, stdout, stderr, pid, returncode
FrF Nr T)encodingerrorsc C sr t tj | _d| _d| _|dkr(d}t|ts:tdt r|dk rNt
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r Y nX qW | j sfg } |t$kr| j%| |t$kr| j%| |t$kr| j%| t&| dr| j%| j' xP| D ]H} y*t r<t| t(r<| j) n
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r^ Y nX qW Y nX dS )zCreate new Popen instance.NFrF zbufsize must be an integerz0preexec_fn is not supported on Windows platformsTzSclose_fds is not supported on Windows platforms if you redirect stdin/stdout/stderrz pass_fds overriding close_fds.z2startupinfo is only supported on Windows platformsr z4creationflags is only supported on Windows platformswb)
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C sD | j r| j j | jr | jj z| jr2| jj W d | j X d S )N)r r r
r} rm )r rz r tracebackr r r __exit__ s
zPopen.__exit__c C sT | j s
d S | jd kr(|d| j t| d | j|d | jd krPtd k rPtj| d S )Nz subprocess %s is still running)source)r> )_child_createdr
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| }nd}z| j |||\}}W dd| _ X | j | j |d}||fS )a4 Interact with process: Send data to stdin. Read data from
stdout and stderr, until end-of-file is reached. Wait for
process to terminate.
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child process (if self.universal_newlines is True, this should
be a string; if it is False, "input" should be bytes), or
None, if no data should be sent to the child.
communicate() returns a tuple (stdout, stderr). These will be
bytes or, if self.universal_newlines was True, a string.
z.Cannot send input after starting communicationNrG T)r )
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countr readr rm _time _communicate_remaining_time)r rt r r r
endtimestsr r r r~ 7 s.
zPopen.communicatec C s | j S )zSCheck if child process has terminated. Set and return returncode
attribute.)r@ )r r r r r h s z
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zPopen._check_timeoutc C s |dkr |dkr |dkr d
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} | j| } |||||| fS )z|Construct and return tuple with IO objects:
p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
NrF r r r r r r r )r r r r r r r r )r r r r )r r r r )r r )r< Z GetStdHandler. Z
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zPopen._make_inheritablec C sJ | st dt|ts t|}|dkr.t }d | ||fkr^| jtjO _| |_||_ ||_
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kr| j |d kr|j |d kr|j t| dr tj| j d| _X d| _t|| _ || _ tj | dS )
z$Execute program (MS Windows version)z"pass_fds not supported on Windows.NrF ZCOMSPECzcmd.exez
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zPopen._execute_childc C s, | j dkr&|| jd|kr&|| j| _ | j S )zCheck if child process has terminated. Returns returncode
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Nr )r
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zPopen._internal_pollc C s |dk r"t jdtdd | j|}|dkr2tj}n t|d }| jdkrztj| j |}|tj
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| j | _| jS )zOWait for child process to terminate. Returns returncode
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_readerthread: s zPopen._readerthreadc C s` | j rDt| d rDg | _tj| j| j | jfd| _d| j_| jj | j rt| d rg | _
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zPopen._communicatec C sl | j dk rdS |tjkr"| j nF|tjkr>tj| jtj n*|tjkrZtj| jtj nt dj
|dS )z Send a signal to the process.NzUnsupported signal: {}) r
r SIGTERM terminateZ CTRL_C_EVENTr rn r ZCTRL_BREAK_EVENTr ry )r sigr r r send_signals s
zPopen.send_signalc C sX | j dk rdS ytj| jd W n2 tk
rR tj| j}|tjkrH || _ Y nX dS )zTerminates the process.NrF )r
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zPopen.terminatec
C s. d\}}d\}}d \}} |dkr"n@|t kr8tj \}}n*|tkrJ| j }nt|trZ|}n|j }|dkrln@|t krtj \}}n*|tkr| j }nt|tr|}n|j }|dkrnh|t krtj \}} nR|tk r|d kr|} n
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z|Construct and return tuple with IO objects:
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rF Nr r )r r r r )r r r r )r r r ) r" r piper* r r r8 r r# rA
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