OS: Windows 11

tor-relay-scanner-0.0.7.exe -g 1 --timeout 3 --browser --start-browser
Tor Relay Scanner. Will scan up to 1 working relays (or till the end)
Downloading Tor Relay information from onionoo.torproject.org…
Can't download Tor Relay data from/via onionoo.torproject.org: HTTPSConnectionPool(host='onionoo.torproject.org', port=443): Max retries exceeded with url: /details?type=relay&running=true&fields=fingerprint,or_addresses (Caused by ProxyError('Cannot connect to proxy.', timeout('_ssl.c:1114: The handshake operation timed out')))
Can't download Tor Relay data from/via corsbypasser.herokuapp.com: HTTPSConnectionPool(host='corsbypasser.herokuapp.com', port=443): Max retries exceeded with url: /https://onionoo.torproject.org/details?type=relay&running=true&fields=fingerprint,or_addresses (Caused by ProxyError('Cannot connect to proxy.', timeout('_ssl.c:1114: The handshake operation timed out')))
Can't download Tor Relay data from/via corsanywhere.herokuapp.com: HTTPSConnectionPool(host='corsanywhere.herokuapp.com', port=443): Max retries exceeded with url: /https://onionoo.torproject.org/details?type=relay&running=true&fields=fingerprint,or_addresses (Caused by ProxyError('Cannot connect to proxy.', timeout('_ssl.c:1114: The handshake operation timed out')))
Can't download Tor Relay data from/via tauron.herokuapp.com: HTTPSConnectionPool(host='tauron.herokuapp.com', port=443): Max retries exceeded with url: /https://onionoo.torproject.org/details?type=relay&running=true&fields=fingerprint,or_addresses (Caused by ProxyError('Cannot connect to proxy.', timeout('_ssl.c:1114: The handshake operation timed out')))
Can't download Tor Relay data from/via cors-anywhere2.herokuapp.com: HTTPSConnectionPool(host='cors-anywhere2.herokuapp.com', port=443): Max retries exceeded with url: /https://onionoo.torproject.org/details?type=relay&running=true&fields=fingerprint,or_addresses (Caused by ProxyError('Cannot connect to proxy.', timeout('_ssl.c:1114: The handshake operation timed out')))
Can't download Tor Relay data from/via icors.vercel.app: HTTPSConnectionPool(host='icors.vercel.app', port=443): Max retries exceeded with url: /?https%3A//onionoo.torproject.org/details%3Ftype%3Drelay%26running%3Dtrue%26fields%3Dfingerprint%2Cor_addresses (Caused by ProxyError('Cannot connect to proxy.', timeout('_ssl.c:1114: The handshake operation timed out')))
Tor Relay information can't be downloaded!

`C:\Windows\system32> F:_BROWSER\trs\tor-relay-scanner-0.0.3.exe

Tor Relay Scanner. Will scan up to 5 working relays (or till the end) Downloading Tor Relay information from onionoo.torproject.org: Can't download Tor Relay data from/via onionoo.torproject.org: HTTPSConnectionPool(host='onionoo.torproject.org', port=4 43): Max retries exceeded with url: /details?type=relay&running=true&fields=fingerprint,or_addresses (Caused by SSLError (SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))) Can't download Tor Relay data from/via corsbypasser.herokuapp.com: HTTPSConnectionPool(host='corsbypasser.herokuapp.com' , port=443): Max retries exceeded with url: /https://onionoo.torproject.org/details?type=relay&running=true&fields=finge rprint,or_addresses (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))) Can't download Tor Relay data from/via corsanywhere.herokuapp.com: HTTPSConnectionPool(host='corsanywhere.herokuapp.com' , port=443): Max retries exceeded with url: /https://onionoo.torproject.org/details?type=relay&running=true&fields=finge rprint,or_addresses (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))) Can't download Tor Relay data from/via tauron.herokuapp.com: HTTPSConnectionPool(host='tauron.herokuapp.com', port=443): Max retries exceeded with url: /https://onionoo.torproject.org/details?type=relay&running=true&fields=fingerprint,or_ad dresses (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (ssl.c:1131)'))) Traceback (most recent call last): File "tor_relay_scanner_main.py", line 5, in File "tor_relay_scanner\scanner.py", line 167, in main File "asyncio\runners.py", line 44, in run File "asyncio\base_events.py", line 616, in run_until_complete File "tor_relay_scanner\scanner.py", line 115, in main_async File "tor_relay_scanner\scanner.py", line 62, in grab_parse TypeError: 'NoneType' object is not subscriptable [7056] Failed to execute script 'main' due to unhandled exception!

C:\Windows\system32> `

I use Debian Stretch, its Python 3 version is 3.5.3. I get this error message:

$ cd ~/opt/tor-browser_en-US && python3 ./tor-relay-scanner-0.0.7.pyz -g 1 --timeout 3 --browser --start-browser
Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "./tor-relay-scanner-0.0.7.pyz/__main__.py", line 2, in <module>
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 954, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 896, in _find_spec
  File "<frozen importlib._bootstrap_external>", line 1147, in find_spec
  File "<frozen importlib._bootstrap_external>", line 1123, in _get_spec
  File "<frozen importlib._bootstrap_external>", line 1104, in _legacy_get_spec
  File "<frozen importlib._bootstrap>", line 444, in spec_from_loader
  File "<frozen importlib._bootstrap_external>", line 541, in spec_from_file_location
  File "./tor-relay-scanner-0.0.7.pyz/tor_relay_scanner/scanner.py", line 137
    print(f"Tor Relay Scanner. Will scan up to {WORKING_RELAY_NUM_GOAL}" +
                                                                       ^
SyntaxError: invalid syntax

So it seems Python 3.5.3 is not supported. So I cannot use this tool on my computer

Hi! I Just have added command options to allow the user define easily the number of random relays to test and the number of relays to scan (or until the end, if it's the case).

Tor Relay Scanner. Will scan up to 1 working relays (or till the end)
Downloading Tor Relay information from onionoo.torproject.org…
Can't download Tor Relay data from/via onionoo.torproject.org: ('Connection aborted.', ConnectionResetError(10054, 'Удаленный хост принудительно разорвал существующее подключение', None, 10054, None))
Can't download Tor Relay data from/via corsbypasser.herokuapp.com: Expecting value: line 1 column 1 (char 0)
Done!

Try 0/235, We'll test the following 30 random relays:
...

Our country Russia, China, blocked https://onionoo.torproject.org https://bridges.torproject.org/ Testing tor-relay-scanner with a proxy makes no sense at all. You need to store the onionoo.torproject.org data crawler at raw.githubusercontent.com