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Return process object representing the current process
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Return list of process objects corresponding to live child processes
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Return process object representing the parent process
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Process objects represent activity that is run in a separate process
The class is analogous to `threading.Thread`
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Method to be run in sub-process; can be overridden in sub-class
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Start child process
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Terminate process; sends SIGTERM signal or uses TerminateProcess()
N)r< r � terminater r r r rB � s zBaseProcess.terminatec C s | � � | j�� dS )zT
Terminate process; sends SIGKILL signal or uses TerminateProcess()
N)r< r �killr r r r rC � s zBaseProcess.killc C sR | � � | jt�� ks td��| jdk s0td��| j�|�}|dk rNt�| � dS )z5
Wait until child process terminates
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Return whether process is alive
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Close the Process object.
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an error to call this method if the child process is still running.
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Return whether process is a daemon
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Set whether process is a daemon
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Set authorization key of process
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Return exit code of process or `None` if it has yet to stop
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Return identifier (PID) of process or `None` if it has yet to start
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Return a file descriptor (Unix) or handle (Windows) suitable for
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dd �ZeZdS ) rj c C s4 d| _ || _|| _d | _d | _d| _|| _i | _d S )Nr F)r! r2 �_pidr& r r) r@ r" )r r' rO r? r r r r: h s z_ParentProcess.__init__c C s ddl m} || jgdd� S )Nr �rD �rE ��multiprocessing.connectionrD r@ )r rD r r r rH r s z_ParentProcess.is_alivec C s | j S r )r� r r r r rP v s z_ParentProcess.identNc C s ddl m} || jg|d� dS )z6
Wait until parent process terminates
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