python error

[paolo-hub]

Dear all, I have a problem with the script generate-domains-blocklist.py
If I execute the script with the example .cof file, I receive an error message of Python3.
I have executed the script on a Raspberry Pi 3 Model B, with Raspberry OS Bulseyes and Python 3.9.2.

In the following the complete output:

$ python generate-domains-blocklist.py -i -c domains-blocklist.conf -o dnscrypt-blocklist-domains.txt

Loading data from [https://pgl.yoyo.org/adservers/serverlist.php?hostformat=nohtml]
Loading data from [https://paulgb.github.io/BarbBlock/blacklists/domain-list.txt]
Loading data from [https://raw.githubusercontent.com/notracking/hosts-blocklists/master/dnscrypt-proxy/dnscrypt-proxy.blacklist.txt]
Loading data from [https://raw.githubusercontent.com/nextdns/cname-cloaking-blocklist/master/domains]
Loading data from [https://hostfiles.frogeye.fr/firstparty-trackers.txt]
Loading data from [https://hosts.oisd.nl/basic/]
Loading data from [file:domains-time-restricted.txt]
Loading data from [file:domains-allowlist.txt]
Traceback (most recent call last):
  File "/usr/lib/python3.9/urllib/request.py", line 1503, in open_local_file
    stats = os.stat(localfile)
FileNotFoundError: [Errno 2] No such file or directory: 'domains-allowlist.txt'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pi/Development/generate-domains-blocklist.py", line 121, in load_from_url
    response = urllib.urlopen(req, timeout=int(args.timeout))
  File "/usr/lib/python3.9/urllib/request.py", line 214, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.9/urllib/request.py", line 517, in open
    response = self._open(req, data)
  File "/usr/lib/python3.9/urllib/request.py", line 534, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
  File "/usr/lib/python3.9/urllib/request.py", line 494, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.9/urllib/request.py", line 1481, in file_open
    return self.open_local_file(req)
  File "/usr/lib/python3.9/urllib/request.py", line 1520, in open_local_file
    raise URLError(exp)
urllib.error.URLError: <urlopen error [Errno 2] No such file or directory: 'domains-allowlist.txt'>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pi/Development/generate-domains-blocklist.py", line 349, in <module>
    blocklists_from_config_file(
  File "/home/pi/Development/generate-domains-blocklist.py", line 244, in blocklists_from_config_file
    allowed_names |= allowlist_from_url(allowlist)
  File "/home/pi/Development/generate-domains-blocklist.py", line 183, in allowlist_from_url
    content, trusted = load_from_url(url)
  File "/home/pi/Development/generate-domains-blocklist.py", line 123, in load_from_url
    raise Exception("[{}] could not be loaded: {}\n".format(url, err))
Exception: [file:domains-allowlist.txt] could not be loaded: <urlopen error [Errno 2] No such file or directory: 'domains-allowlist.txt'>

[d3cim]

File "/usr/lib/python3.9/urllib/request.py", line 1503, in open_local_file
stats = os.stat(localfile)
FileNotFoundError: [Errno 2] No such file or directory: 'domains-allowlist.txt'

urllib.error.URLError: <urlopen error [Errno 2] No such file or directory: 'domains-allowlist.txt'>

Exception: [file:domains-allowlist.txt] could not be loaded: <urlopen error [Errno 2] No such file or directory: 'domains-allowlist.txt'>

Make sure in the .py script folder there are all these files /utils/generate-domains-blocklist, domains-allowlist.txt in particular.

[paolo-hub]

Many thanks.
My error was that I use dnscrypt-proxy as docker and I have tried to esecute the script tn the /etc/dnscrypt-proxy folder inside the Container.
Now I have executed the script in /utils folder on the host and it works.