Run local python script on remote server

Question

I m debugging some python script that must run on my virtual machine  And  I prefer to edit the scripts locally outside of virtual machines   So I find it s tedious to scp modified scripts to virtual machines every time  Can anyone suggests some effective way   Particularly  I m wondering if it s possible to execute python scripts on remote PVM  Something like that   python --remote user 192 168 1 101 hello py     FAKED    served to explain ONLY

User · Accepted Answer

It is possible using ssh  Python accepts hyphen -  as argument to execute the standard input   cat hello py   ssh user 192 168 1 101 python -   Run python --help for more info

User · Answer

Although this question isn t quite new and an answer was already chosen  I would like to share another nice approach   Using the paramiko library - a pure python implementation of SSH2 - your python script can connect to a remote host via SSH  copy itself     to that host and then execute that copy on the remote host  Stdin  stdout and stderr of the remote process will be available on your local running script  So this solution is pretty much independent of an IDE   On my local machine  I run the script with a cmd-line parameter  deploy   which triggers the remote execution  Without such a parameter  the actual code intended for the remote host is run   import sys import os  def main        print os name  if   name         main         try          if sys argv 1      deploy               import paramiko                Connect to remote host             client   paramiko SSHClient               client set missing host key policy paramiko AutoAddPolicy                client connect  remote hostname or IP   username  john   password  secret                  Setup sftp connection and transmit this script             sftp   client open sftp               sftp put   file      tmp myscript py               sftp close                  Run the transmitted script remotely without args and show its output                SSHClient exec command   returns the tuple  stdin stdout stderr              stdout   client exec command  python  tmp myscript py   1              for line in stdout                    Process each line in the remote output                 print line              client close               sys exit 0      except IndexError          pass        No cmd-line args provided  run script normally     main     Exception handling is left out to simplify this example  In projects with multiple script files you will probably have to put all those files  and other dependencies  on the remote host

User · Answer

You can do it via ssh   ssh user 192 168 1 101  python   hello py   You can also edit the script in ssh using a textual editor or X11 forwarding

User · Answer

I ve had to do this before using Paramiko in a case where I wanted to run a dynamic  local PyQt4 script on a host running an ssh server that has connected my OpenVPN server and ask for their routing preference  split tunneling    So long as the ssh server you are connecting to has all of the required dependencies of your script  PyQt4 in my case   you can easily encapsulate the data by encoding it in base64 and use the exec   built-in function on the decoded message  If I remember correctly my one-liner for this was   stdout   client exec command  python -c  exec        open  hello py   r   read   encode  base64   strip   n          decode    base64          1    It is hard to read and you have to escape the escape sequences because they are interpreted twice  once by the sender and then again by the receiver   It also may need some debugging  I ve packed up my server to PCS or I d just reference my OpenVPN routing script   The difference in doing it this way as opposed to sending a file is that it never touches the disk on the server and is run straight from memory  unless of course they log the command   You ll find that encapsulating information this way  although inefficient  can help you package data into a single file   For instance  you can use this method to include raw data from external dependencies  i e  an image  in your main script

User · Answer

ssh user machine python  lt  script py - arg1 arg2   Because cat   is usually not necessary

[python] Run local python script on remote server

Examples related to python

Examples related to ssh

Examples related to remote-debugging

Examples related to scp