Program for Backup - Python

Question

Im trying to execute the following code in Python 2.7 on Windows7. The purpose of the code is to take back up from the specified folder to a specified folder as per the naming pattern given.

However, Im not able to get it work. The output has always been 'Backup Failed'.

Please advise on how I get resolve this to get the code working.

Thanks.

Code :

backup_ver1.py

import os
import time
import sys

sys.path.append('C:\Python27\GnuWin32\bin')
source = 'C:\New'
target_dir = 'E:\Backup'
target = target_dir + os.sep + time.strftime('%Y%m%d%H%M%S') + '.zip'
zip_command = "zip -qr {0} {1}".format(target,''.join(source))
print('This is a program for backing up files')
print(zip_command)

if os.system(zip_command)==0:
print('Successful backup to', target)
else:
print('Backup FAILED')

You already print the zip command; have you tried copying it exactly and executing it from the command line? Then you will see the error it outputs. — poke
– poke, Commented Jul 31, 2013 at 10:56

Himanshu · Accepted Answer · 2013-07-31 11:56:51Z

1

See if escaping the \'s helps :-

source = 'C:\\New'
target_dir = 'E:\\Backup'

answered Jul 31, 2013 at 11:56

Himanshu

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10 Comments

Blckknght Over a year ago

Or use "raw" string literals: source = r'C:\New'

Himanshu Over a year ago

Tried on my system but it shows the errors on the console. You don't see any errors on the console?

Learner12 Over a year ago

I was trying with IDLE. I tried executing from Command Prompt now, I get the following error: " 'zip" is not recognised as an internal or external command, operable program or batch file". Any idea whats the way out of this - where am I wrong?

Himanshu Over a year ago

Add the path to the zip program to the environment variable

Learner12 Over a year ago

I thought this line does the job : "sys.path.append('C:\Python27\GnuWin32\bin')". Is it not?

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