SSLError on solcx.install v0.8.6

[vincentsmh]

Environment information

• py-solc-x Version: x.x.x
• solc Version: x.x.x
• Python Version: 3.8.10
• OS: linux

What was wrong?

Please include information like:

$ python3 -m solcx.install v0.8.6
/usr/lib/python3.8/runpy.py:127: RuntimeWarning: 'solcx.install' found in sys.modules after import of package 'solcx', but prior to execution of 'solcx.install'; this may result in unpredictable behaviour
warn(RuntimeWarning(msg))
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 485, in wrap_socket
cnx.do_handshake()
File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1915, in do_handshake
self._raise_ssl_error(self._ssl, result)
File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1647, in _raise_ssl_error
_raise_current_error()
File "/usr/lib/python3/dist-packages/OpenSSL/_util.py", line 54, in exception_from_error_queue
raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 665, in urlopen
httplib_response = self._make_request(
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 376, in _make_request
self._validate_conn(conn)
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 996, in validate_conn
conn.connect()
File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 366, in connect
self.sock = ssl_wrap_socket(
File "/usr/lib/python3/dist-packages/urllib3/util/ssl.py", line 370, in ssl_wrap_socket
return context.wrap_socket(sock, server_hostname=server_hostname)
File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 491, in wrap_socket
raise ssl.SSLError("bad handshake: %r" % e)
ssl.SSLError: ("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 439, in send
resp = conn.urlopen(
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 719, in urlopen
retries = retries.increment(
File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 436, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='solc-bin.ethereum.org', port=443): Max retries exceeded with url: /linux-amd64/list.json (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_serve
r_certificate', 'certificate verify failed')])")))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/user/.local/lib/python3.8/site-packages/solcx/install.py", line 665, in
install_solc(args.version, solcx_binary_path=args.solcx_binary_path)
File "/home/user/.local/lib/python3.8/site-packages/solcx/install.py", line 441, in install_solc
data = requests.get(BINARY_DOWNLOAD_BASE.format(_get_os_name(), "list.json"))
File "/usr/lib/python3/dist-packages/requests/api.py", line 75, in get
return request('get', url, params=params, **kwargs)
File "/usr/lib/python3/dist-packages/requests/api.py", line 60, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 514, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='solc-bin.ethereum.org', port=443): Max retries exceeded with url: /linux-amd64/list.json (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_ce
rtificate', 'certificate verify failed')])")))