Using variable in storbinary function of ftpilb module

[Arya, Manish Kumar]

Hi,

  I am new to python.

I have written a simple code to upload a file via ftp to remote server

-------------
import sys
import ftplib
host=sys.argv[1]
username=sys.argv[2]
passwd=sys.argv[3]
filename=sys.argv[4]

print host,username,passwd

ftp = ftplib.FTP(host,username,passwd)
fd=open(filename,'rb')
ftp.storbinary('STOR filename',fd)
-------------------

I am passing file name in cmd line arg. but I have no idea how to use "filename" variable value in ftp.storbinary('STOR filename',fd) ?