Cannot access file on Samba server via Python

Question

I'm trying to access a file on our Samba server using Python. I found out I need to use a Samba client for this, so I started using PySmbClient. Even though there are many examples online of how to do this, mine just does not want to work. See below.

smb = smbclient.SambaClient(server="192.168.0.320", share="DATA", domain="WORKGROUP",username="admin", password="abc123")
f = smb.open('test.json', 'r')

This produces the following error:

OSError: [Errno 2] No such file or directory

with the following trace:

Traceback (most recent call last):
  File "create_dataset.py", line 35, in <module>
    f = smb.open('serverSaver.txt', 'r')
  File "/home/grant/Development/create_dataset/env/local/lib/python2.7/site-packages/smbclient.py", line 408, in open
    f = _SambaFile(self, path, mode)
  File "/home/grant/Development/create_dataset/env/local/lib/python2.7/site-packages/smbclient.py", line 448, in __init__
    connection.download(remote_name, self._tmp_name)
  File "/home/grant/Development/create_dataset/env/local/lib/python2.7/site-packages/smbclient.py", line 393, in download
    result = self._runcmd('get', remote_path, local_path)
  File "/home/grant/Development/create_dataset/env/local/lib/python2.7/site-packages/smbclient.py", line 184, in _runcmd
    return self._raw_runcmd(fullcmd)
  File "/home/grant/Development/create_dataset/env/local/lib/python2.7/site-packages/smbclient.py", line 168, in _raw_runcmd
    stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
  File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
    raise child_exception

I've read and implemented many "solutions", but so far nothing has worked for me. I can access the Samba server with the given credentials through my file manager just fine, so I know those values should be fine. I even spoke to our sys admin and he doesn't know what could be wrong.

It must be more than the simple code I wrote. Do you think there's an issue on the server side of things? Something with the values I input into SambaClient? At this point I'm pretty much open to anything that leads to a solution.