Ignition 7.9.21: ftplib not found

Ignition
1

I know, I need to upgrade, but can't right now on this server.
I'm trying to script ftping, and i suddenly started getting this message:
ImportError: No module named ftplib
This was working, and suddenly stopped working.
It does work from the script console.
I have not tried restarting the gateway.
ftplib exists in C:\Program Files\Inductive Automation\Ignition\user-lib\pylib

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import os
from ftplib import FTP

Update: I did restart the gateway service, but not the entire server, and no change.

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Update #2:
I created a tag change script to do the same function, and it ran succesfully once, then I get same message.
Thanks!

2

Can you share the full script that runs once and then fails subsequently?

3

It is really simple, just open an ftp connection, grab the files, save them.

I'm getting a similar error with a script that uses the csv library to process the files, where after running once it will be unable to find the csv moduel. I'm about to bounce this to a different server using 8.1. I've tried various versions of the import ftplib, from ftplib import, etc....

if newValue.value:
	import os
	from ftplib import FTP
	import ftplib
	
	
	
	logger=system.util.getLogger('CPPVFTP')
	time=system.date.now()
	#logger.info('Started at '+str(time))
	
	ftp=FTP('xxxxxxxxx')
	ftp.login('anonymous','xxxxxxxxx')
	ftp.cwd('Data') 
	#logger.info('FTP Dir done')
	ftp.retrlines('LIST')    
	list=ftp.nlst()
	#set local directory
	workingdir=system.tag.read('[ADHF]ImportUtility/WorkingDirectory').value
	os.chdir(workingdir)
	for a in list:   #This is run for each file
			#ftp and save the file
			fp=open(str(a),'wb')
			cmd='RETR '+str(a)
			ftp.retrbinary(cmd,fp.write)
			fp.close()
			logger.info('File Saved: '+str(a))
	#ftp.disconnect()
	ftp.quit()
	logger.info('Done')
	tag=event.getTagPath().toString()
	system.tag.write(tag,False)
4

You are redefining python's built-in name list as a local variable. That might be contributing.

5

Whoops-changed that and testing.
Still runs once then unable to find module.

6

Is this defined in the project library or in an event script? If its not in a project library script, try defining it in one, moving the import statements to outside of the function definition like so:

import os
from ftplib import FTP
import ftplib


def someFtpActionFunction():
    """ """
    # Your ftp stuff here

Also, someone more knowledgeable on me than this, could the from ftplib import FTP followed by the import ftplib cause any issues?

1 Like
7

Implementing as a project library seems to be working, thanks!

1 Like