paramiko remote connection linux server upload and download files

Spent a lot of time studying paramiko in sftpclient file transfer, meal operate fierce as a tiger, and finally has been stuck in the path of error issues, access to information for reference bigwigs crazy experiences, or they might, sleep a lunch awakening to, a closer look at the original path of the specified file does not exist, then I go to buy a cool ice cream the next. Leaving the code for all to learn, it can be directly used on the line.

import paramiko

the Linux class (Object): 

     DEF the __init __ (Self, IP, username, password, timout = 30): 
         self.hostname = IP 
         self.username = username 
         self.password = password 
         self.port = 22 is 
         self.t = '' 
         Self. = Chan '' 
         # connection retries 
         self.try_times. 3 = 
      # invokes this method to connect a host linux 
     DEF Conn (Self): 
         Pass 
     # disconnect 
     DEF Close (Self): 
         Pass 
     the command sent to be executed # 
     def send (self) : 
         Pass 
     # upload 
     DEF sftp_put (Self, localfile, remotefile): 
         # set the remote IP address and port SSH connection 
         t = paramiko.Transport ((self.hostname, 22 ))
         # Set username and password parameters 
         t.connect (= self.username username, password = self.password) 
         # instanced Transport SFTPClient passed as a parameter in the 
         SFTP = paramiko.SFTPClient.from_transport (T) 
         # of local test.txt put to a distal end, and remains test.txt 
         sftp.put (localfile, remotefile) 
         # close the connection 
         t.close () 
     # download file 
     DEF sftp_get (Self, remotefile, newlocalfile): 

         T = paramiko.Transport (( self.hostname, 22 is)) 

         t.connect (= self.username username, password = self.password) 

         SFTP = paramiko.SFTPClient.from_transport (T) 
         # test.txt put the distal end to the distal end, and remains newtest .txt 
         sftp.get (remotefile, newlocalfile) 
         # close the connection
         t.close()



if __name__ == '__main__':
    localpath = r'I:\Meitu\数据库密码.txt'
    remotepath = r'/usr/local/test/数据库密码.txt'
    newlocalpath = r'I:\Meitu\newtest.gz'
    host = Linux('192.168.55.158', 'root', '1')
    host.sftp_put(localpath,remotepath)
    host.sftp_get(remotepath,newlocalpath)