SSL error - Certificates Verify Failed when accessing website with Requests - python-3.x

Question

I'm trying to connect with website to run webscrapping, but I'm stuck at SSL Error.
import urllib,ssl
import requests
from bs4 import BeautifulSoup
import certifi
import ssl
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36"
}
with requests.Session() as s:
url = "https://portal.librus.pl/rodzina/synergia/loguj"
r = s.get(url, headers=headers)
print(r.content)
gives error:
---------------------------------------------------------------------------
SSLCertVerificationError Traceback (most recent call last)
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\urllib3\connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
669 # Make the request on the httplib connection object.
--> 670 httplib_response = self._make_request(
671 conn,
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\urllib3\connectionpool.py in _make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
380 try:
--> 381 self._validate_conn(conn)
382 except (SocketTimeout, BaseSSLError) as e:
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\urllib3\connectionpool.py in _validate_conn(self, conn)
977 if not getattr(conn, "sock", None): # AppEngine might not have `.sock`
--> 978 conn.connect()
979
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\urllib3\connection.py in connect(self)
361
--> 362 self.sock = ssl_wrap_socket(
363 sock=conn,
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\urllib3\util\ssl_.py in ssl_wrap_socket(sock, keyfile, certfile, cert_reqs, ca_certs, server_hostname, ssl_version, ciphers, ssl_context, ca_cert_dir, key_password, ca_cert_data)
385 if HAS_SNI and server_hostname is not None:
--> 386 return context.wrap_socket(sock, server_hostname=server_hostname)
387
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\ssl.py in wrap_socket(self, sock, server_side, do_handshake_on_connect, suppress_ragged_eofs, server_hostname, session)
499 # ctx._wrap_socket()
--> 500 return self.sslsocket_class._create(
501 sock=sock,
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\ssl.py in _create(cls, sock, server_side, do_handshake_on_connect, suppress_ragged_eofs, server_hostname, context, session)
1039 raise ValueError("do_handshake_on_connect should not be specified for non-blocking sockets")
-> 1040 self.do_handshake()
1041 except (OSError, ValueError):
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\ssl.py in do_handshake(self, block)
1308 self.settimeout(None)
-> 1309 self._sslobj.do_handshake()
1310 finally:
SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)
During handling of the above exception, another exception occurred:
MaxRetryError Traceback (most recent call last)
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\requests\adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
438 if not chunked:
--> 439 resp = conn.urlopen(
440 method=request.method,
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\urllib3\connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
725
--> 726 retries = retries.increment(
727 method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\urllib3\util\retry.py in increment(self, method, url, response, error, _pool, _stacktrace)
445 if new_retry.is_exhausted():
--> 446 raise MaxRetryError(_pool, url, error or ResponseError(cause))
447
MaxRetryError: HTTPSConnectionPool(host='portal.librus.pl', port=443): Max retries exceeded with url: /rodzina/synergia/loguj (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)')))
During handling of the above exception, another exception occurred:
SSLError Traceback (most recent call last)
<ipython-input-7-04d12114a1d8> in <module>
12 with requests.Session() as s:
13 url = "https://portal.librus.pl/rodzina/synergia/loguj"
---> 14 r = s.get(url, headers=headers)
15 soup = BeautifulSoup(r.content, "html5lib")
16 login_data["form_build_id"] = soup.find("input", attrs={"name": "form_build_id"})[
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\requests\sessions.py in get(self, url, **kwargs)
541
542 kwargs.setdefault('allow_redirects', True)
--> 543 return self.request('GET', url, **kwargs)
544
545 def options(self, url, **kwargs):
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\requests\sessions.py in request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
528 }
529 send_kwargs.update(settings)
--> 530 resp = self.send(prep, **send_kwargs)
531
532 return resp
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\requests\sessions.py in send(self, request, **kwargs)
641
642 # Send the request
--> 643 r = adapter.send(request, **kwargs)
644
645 # Total elapsed time of the request (approximately)
c:\Apps\Anaconda3\v3_8_5_x64\Local\lib\site-packages\requests\adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
512 if isinstance(e.reason, _SSLError):
513 # This branch is for urllib3 v1.22 and later.
--> 514 raise SSLError(e, request=request)
515
516 raise ConnectionError(e, request=request)
SSLError: HTTPSConnectionPool(host='portal.librus.pl', port=443): Max retries exceeded with url: /rodzina/synergia/loguj (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)')))
Sorry for putting so long error massage but maybe there are some useful details.
Website is running fine in the browser but python can't cover the certificates. Can you advise how to deal with this?
Thanks,
Paulina