Cannot use sock5 proxy (Tor connection) #1026

$ echo $all_proxy
socks5://127.0.0.1:9050

Traceback (most recent call last):
  File "/app/lib/python3.8/site-packages/gpodder/download.py", line 790, in run
    headers, real_url = downloader.retrieve_resume(self.tempname, self.status_updated)
  File "/app/lib/python3.8/site-packages/gpodder/download.py", line 340, in retrieve_resume
    headers, real_url = downloader.retrieve_resume(url,
  File "/app/lib/python3.8/site-packages/gpodder/download.py", line 268, in retrieve_resume
    with session.get(url,
  File "/app/lib/python3.8/site-packages/requests/sessions.py", line 555, in get
    return self.request('GET', url, **kwargs)
  File "/app/lib/python3.8/site-packages/requests/sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "/app/lib/python3.8/site-packages/requests/sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "/app/lib/python3.8/site-packages/requests/adapters.py", line 412, in send
    conn = self.get_connection(request.url, proxies)
  File "/app/lib/python3.8/site-packages/requests/adapters.py", line 309, in get_connection
    proxy_manager = self.proxy_manager_for(proxy)
  File "/app/lib/python3.8/site-packages/requests/adapters.py", line 182, in proxy_manager_for
    manager = self.proxy_manager[proxy] = SOCKSProxyManager(
  File "/app/lib/python3.8/site-packages/requests/adapters.py", line 47, in SOCKSProxyManager
    raise InvalidSchema("Missing dependencies for SOCKS support.")
requests.exceptions.InvalidSchema: Missing dependencies for SOCKS support.

$ pip install requests[socks]
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: requests[socks] in /usr/lib/python3.8/site-packages (2.25.1)
Requirement already satisfied: certifi>=2017.4.17 in /usr/lib/python3.8/site-packages (from requests[socks]) (2020.12.5)
Requirement already satisfied: chardet<5,>=3.0.2 in /usr/lib/python3.8/site-packages (from requests[socks]) (4.0.0)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in /usr/lib/python3.8/site-packages (from requests[socks]) (1.26.4)
Requirement already satisfied: idna<4,>=2.5 in /usr/lib/python3.8/site-packages (from requests[socks]) (3.1)
Requirement already satisfied: PySocks!=1.5.7,>=1.5.6 in /usr/lib/python3.8/site-packages (from requests[socks]) (1.7.1)

requests.exceptions.ProxyError: HTTPSConnectionPool(host='traffic.libsyn.com', port=443): Max retries exceeded with url: link (Caused by ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 501 Tor is not an HTTP Proxy')))

requests.exceptions.SSLError: HTTPSConnectionPool(host='traffic.libsyn.com', port=443): Max retries exceeded with url: link (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1125)')))