I need implement a uploading function which can continue from the point from last interruption via sftp. 
I'm trying paramiko. but I cannot fond any example about this. Can anybody give me some advices?
Best regards
SFTP.open(mode='a') opens a file in appending mode. So first you can call SFTP.stat() to get the current size of the file (on remote side) and then open(mode='a') it and append new data to it.
can paramiko has the function to implememt uploading continue from the point from last interruption