SSL: CERTIFICATE_VERIFY_FAILED

Hi everyone and thanks in advance for any help you can give me.
Launching 'pipreqs . ' I get the following error:

WARNING: Import named "cx_Oracle" not found locally. Trying to resolve it at the PyPI server.
Traceback (most recent call last):
File "C:\Python311\Lib\site-packages\urllib3\connectionpool.py", line 467, in _make_request
self._validate_conn(conn)
File "C:\Python311\Lib\site-packages\urllib3\connectionpool.py", line 1092, in _validate_conn
conn.connect()
File "C:\Python311\Lib\site-packages\urllib3\connection.py", line 642, in connect
sock_and_verified = _ssl_wrap_socket_and_match_hostname(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\urllib3\connection.py", line 783, in _ssl_wrap_socket_and_match_hostname
ssl_sock = ssl_wrap_socket(
^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\urllib3\util\ssl_.py", line 469, in ssl_wrap_socket
ssl_sock = _ssl_wrap_socket_impl(sock, context, tls_in_tls, server_hostname)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\urllib3\util\ssl_.py", line 513, in _ssl_wrap_socket_impl
return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\ssl.py", line 517, in wrap_socket
return self.sslsocket_class._create(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\ssl.py", line 1075, in _create
self.do_handshake()
File "C:\Python311\Lib\ssl.py", line 1346, in do_handshake
self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate signature failure (_ssl.c:1002)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Python311\Lib\site-packages\urllib3\connectionpool.py", line 790, in urlopen
response = self._make_request(
^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\urllib3\connectionpool.py", line 491, in _make_request
raise new_e
urllib3.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate signature failure (_ssl.c:1002)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "C:\Python311\Lib\site-packages\requests\adapters.py", line 486, in send
resp = conn.urlopen(
^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\urllib3\connectionpool.py", line 844, in urlopen
retries = retries.increment(
^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\urllib3\util\retry.py", line 515, in increment
raise MaxRetryError(_pool, url, reason) from reason # type: ignore[arg-type]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /pypi/cx_Oracle/json (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate signature failure (_ssl.c:1002)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "", line 198, in _run_module_as_main
File "", line 88, in _run_code
File "C:\Python311\Scripts\pipreqs.exe\__main__.py", line 7, in
File "C:\Python311\Lib\site-packages\pipreqs\pipreqs.py", line 528, in main
init(args)
File "C:\Python311\Lib\site-packages\pipreqs\pipreqs.py", line 490, in init
imports = local + get_imports_info(difference,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pipreqs\pipreqs.py", line 184, in get_imports_info
response = requests.get(
^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\requests\api.py", line 73, in get
return request("get", url, params=params, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\requests\api.py", line 59, in request
return session.request(method=method, url=url, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\requests\sessions.py", line 589, in request
resp = self.send(prep, **send_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\requests\sessions.py", line 703, in send
r = adapter.send(request, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\requests\adapters.py", line 517, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /pypi/cx_Oracle/json (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate signature failure (_ssl.c:1002)')))

I have already tried searching the Internet and I can say with certainty that I do not use proxies, I can connect to the pypi.python.org and pypi.org sites from both browser and shell.
I added the crt of the pypi.python.org site to my pem file.
I don't know what to do anymore.

Tnx

Start at pipreqs.py line 184, where requests.get queries pypi.python.org during pipreqs execution, and compare it with the reported Python 3.11 traceback. First determine whether the certificate-verification failure is reproducible in the project; done means a confirmed project-level cause and a documented or tested resolution.

Written by the indexing model from the issue text.