Getting `OSError: [Errno 101] Network is unreachable` when trying to initialize for the first time

[poppingtonic]

This is a repeated issue I have encountered when trying to initialize.
Here are the required environment variables added to the .env file:

RAVENVERSE_URL=http://server.ravenverse.ai
RAVENVERSE_FTP_HOST=server.ravenverse.ai
RAVENVERSE_FTP_URL=server.ravenverse.ai

The script:

import os
from dotenv import load_dotenv
import ravop as R

load_dotenv()

TOKEN = os.getenv('RAVENVERSE_TOKEN')
R.initialize(TOKEN)

Returns:

2024-03-06 20:02:48,742 [MainThread  ] [DEBUG]  Checking version of Ravop...
2024-03-06 20:02:49,280 [MainThread  ] [DEBUG]  Initializing...
2024-03-06 20:02:49,282 [MainThread  ] [DEBUG]  Creating FTP developer credentials...
2024-03-06 20:04:13,754 [MainThread  ] [DEBUG]  FTP Upload Blocksize:311296
2024-03-06 20:04:13,754 [MainThread  ] [DEBUG]  FTP User credentials:server.ravenverse.ai <secret> <secret>
---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[4], line 1
----> 1 R.initialize(TOKEN)

File [~/src/ravop/ravop/core/__init__.py:76](http://localhost:9999/lab/tree/ravop/ravop/ravop/core/__init__.py#line=75), in initialize(ravenverse_token)
     72     g.ftp_upload_blocksize = 8192 * 1000
     74 g.logger.debug("FTP Upload Blocksize:{}".format(g.ftp_upload_blocksize))
---> 76 ftp_client = get_client(username=username, password=password)
     77 ftp_username = username
     78 ftp_password = password

File [~/src/ravop/ravop/core/ftp_client.py:34](http://localhost:9999/lab/tree/ravop/ravop/ravop/core/ftp_client.py#line=33), in get_client(username, password)
     32 def get_client(username, password):
     33     g.logger.debug("FTP User credentials:{} {} {}".format(RAVENVERSE_FTP_HOST, username, password))
---> 34     return FTPClient(host=RAVENVERSE_FTP_HOST, user=username, passwd=password)

File [~/src/ravop/ravop/core/ftp_client.py:11](http://localhost:9999/lab/tree/ravop/ravop/ravop/core/ftp_client.py#line=10), in FTPClient.__init__(self, host, user, passwd)
     10 def __init__(self, host, user, passwd):
---> 11     self.ftp = FTP(host)
     12     # self.ftp.set_debuglevel(2)
     13     self.ftp.set_pasv(True)

File [~/miniconda3/envs/snomedct/lib/python3.10/ftplib.py:121](http://localhost:9999/home/muhia/miniconda3/envs/snomedct/lib/python3.10/ftplib.py#line=120), in FTP.__init__(self, host, user, passwd, acct, timeout, source_address, encoding)
    119 self.timeout = timeout
    120 if host:
--> 121     self.connect(host)
    122     if user:
    123         self.login(user, passwd, acct)

File [~/miniconda3/envs/snomedct/lib/python3.10/ftplib.py:158](http://localhost:9999/home/muhia/miniconda3/envs/snomedct/lib/python3.10/ftplib.py#line=157), in FTP.connect(self, host, port, timeout, source_address)
    156     self.source_address = source_address
    157 sys.audit("ftplib.connect", self, self.host, self.port)
--> 158 self.sock = socket.create_connection((self.host, self.port), self.timeout,
    159                                      source_address=self.source_address)
    160 self.af = self.sock.family
    161 self.file = self.sock.makefile('r', encoding=self.encoding)

File [~/miniconda3/envs/snomedct/lib/python3.10/socket.py:845](http://localhost:9999/home/muhia/miniconda3/envs/snomedct/lib/python3.10/socket.py#line=844), in create_connection(address, timeout, source_address)
    843 if err is not None:
    844     try:
--> 845         raise err
    846     finally:
    847         # Break explicitly a reference cycle
    848         err = None

File [~/miniconda3/envs/snomedct/lib/python3.10/socket.py:833](http://localhost:9999/home/muhia/miniconda3/envs/snomedct/lib/python3.10/socket.py#line=832), in create_connection(address, timeout, source_address)
    831 if source_address:
    832     sock.bind(source_address)
--> 833 sock.connect(sa)
    834 # Break explicitly a reference cycle
    835 err = None

OSError: [Errno 101] Network is unreachable