Python uses Paramiko remote execution commands

ImportSYSImportParamikoImportConfig_reader fromCheck_utilsImportStandout_print, Parse_remainsize_response_lines, Error_out_print fromTimeImport TimeclassRemotemodel:"""Remote options Model execute remote command"""    def __init__(Self, host, port=22): Self.hostname=host Self.port=Port Self.username, Self.password=self.load_conf () Self.s=None self.session=None self.init_conn ()defload_conf (self):"""Read Config get the login info of remote host Machine:return:login username and PASSW Ord of SSH Login of this host"""        ifSelf.hostname.find ("10.179.1.110")! =-1: Error_out_print ("error:the remote machine of KOR can not provide. Please know") Sys.exit (-1) Username, password=config_reader.read_login_config (self.hostname)if  notUsernameor  notPassword:error_out_print ('error:can not find SSH login info in this host[%s]. Check Need'%self.hostname) Sys.exit (-1)        returnusername, passworddefInit_conn (self):"""Make a connection with the remote Machine:return:"""        Try: Paramiko.util.log_to_file ("Paramiko_log.log") Self.s=Paramiko. Sshclient () Self.s.set_missing_host_key_policy (Paramiko. Autoaddpolicy ()) Self.s.connect (hostname=self.hostname, Port=self.port, Username=self.username, password=Self.password) Standout_print ('success connect the remote machine [host=%s]'%self.hostname)exceptException, E:standout_print (str (e)) Standout_print ('connect failed.in host[%s] user[%s] or pwd[%s] maybe wrong.'%(Self.hostname, Self.username, Self.password)) Sys.exit (-1)    defClose (self):"""Close if close can not use this connection:return:"""        ifself.s:self.s.close () Self=NonedefExecute_command (Self, command):""":p Aram Command:execute cmd:return:the Response Lines"""Standout_print ("info:execute command [%s]"%command) stdin, stdout, stderr=self.s.exec_command (command) stdin.write ("pwd"+"\ n") Stdin.flush () Response_lines=stdout.readlines () error_info=Stderr.read ()ifError_info andError_info.strip (): Error_out_print ('Remote Command Error info:%s'%Stderr.read ()) Error_out_print (Error_info)returnNone#Info_arr = response_info.split (' \ n ')        returnResponse_linesdefremain_space_size (Self, directory_path):""":p Aram Directory_path:: Return:free size of the directory unit SIZE:MB """cmd='sudo df-m%s 1>&2'% Directory_path#/USR/LOCAL/PGSQL/DATA/SSD1Response_lines=Self.execute_command (cmd)#response_lines = Self.execute_command_channel (cmd)        returnparse_remainsize_response_lines (response_lines)defExecute (Self, command, sudo=False): Feed_password=FalseifSudo andSelf.username! ="Root": Command="sudo%s"%Command Feed_password="pwd"stdin, stdout, stderr= Self.s.exec_command (Command, get_pty=True)ifFeed_password:stdin.write (Self.password+"\ n") Stdin.flush ()return{' out': Stdout.readlines (),'Err': Stderr.readlines (),'retval': Stdout.channel.recv_exit_status ()}if __name__=='__main__': Host=""hostname=""Command="sudo df-m/data/pgsql94/data"RM= Remotemodel (host=hostname)Printrm.execute_command (command)#print Rm.execute ("Df-m/data/pgsql94/data 1>&2", True)

Reference http://www.developerq.com/article/1493123866

Error 1:

Remote command error Info:sudo:sorry, you must has a TTY to run sudo

is due to

Self.s.exec_command (command, Get_pty=true)

Not set

Get_pty=true

Error 2:

will be stuck in

Stdout.readlines ()

is because SSH is waiting for the password to enter the user name

Stdin.write ("pwd" + "\ n") Stdin.flush ()

This way of interacting, note the need to wrap "\ n", and the front must not have other characters such as spaces, to ensure that the password is correct

Python uses Paramiko remote execution commands