Hello
I am trying to use REST API to retrieve some files from sharepoint, and since 8th of April 2026 I receive this message:
ValueError: An error occurred while retrieving auth cookies from https://company.sharepoint.com/_forms/default.aspx?wa=wsignin1.0
The context creation works fine:
self.username = username
self.password = password
user_credentials = UserCredential(username, password)
self.context = ClientContext(self.sharepoint_url).with_credentials(user_credentials)
The context setup works fine:
# decorate relative url methods
self.context.web.get_folder_by_server_relative_url = mandatory_path_dec(
self.context.web.get_folder_by_server_relative_url,
self.mandatory_rel_path
)
self.context.web.get_file_by_server_relative_url = mandatory_path_dec(
self.context.web.get_file_by_server_relative_url,
self.mandatory_rel_path
)I I try to execute a query, I receive an error:
result = self.context.search.post_query(query_text=f"FileName:'{file_name}'").execute_query()
Error:
An error occurred while retrieving auth cookies from https://company.sharepoint.com/_forms/default.aspx?wa=wsignin1.0
Traceback (most recent call last):
File "C:\Program Files\JetBrains\PyCharm Community Edition 2021.3.1\plugins\python-ce\helpers\pydev\_pydevd_bundle\pydevd_exec2.py", line 3, in Exec
exec(exp, global_vars, local_vars)
File "<input>", line 1, in <module>
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\client_result.py", line 54, in execute_query
self._context.execute_query()
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\client_runtime_context.py", line 173, in execute_query
self.pending_request().execute_query(qry)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\client_request.py", line 37, in execute_query
response = self.execute_request_direct(request)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\client_request.py", line 46, in execute_request_direct
self.beforeExecute.notify(request)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\types\event_handler.py", line 41, in notify
listener(*args, **kwargs)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\sharepoint\client_context.py", line 284, in _authenticate_request
self.authentication_context.authenticate_request(request)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\auth\authentication_context.py", line 249, in authenticate_request
self._authenticate(request)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\auth\authentication_context.py", line 206, in _authenticate
provider.authenticate_request(request)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\auth\providers\saml_token_provider.py", line 85, in authenticate_request
self.ensure_authentication_cookie()
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\auth\providers\saml_token_provider.py", line 97, in ensure_authentication_cookie
self._cached_auth_cookies = self.get_authentication_cookie()
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\auth\providers\saml_token_provider.py", line 112, in get_authentication_cookie
return self._get_authentication_cookie(token, user_realm.IsFederated)
File "D:\scripts\python_sharepoint_api\venv\lib\site-packages\office365\runtime\auth\providers\saml_token_provider.py", line 312, in _get_authentication_cookie
raise ValueError(self.error)
ValueError: An error occurred while retrieving auth cookies from https://company.sharepoint.com/_forms/default.aspx?wa=wsignin1.0Nothing has changed in the code from my side in the last year, so do you know if something has changed on the OFFICE side ?
I am unsing REST API Office365-REST-Python-Client 2.5.13, but the behaviour is the same with the latest version (2.6.2)
Hello
I am trying to use REST API to retrieve some files from sharepoint, and since 8th of April 2026 I receive this message:
ValueError: An error occurred while retrieving auth cookies from https://company.sharepoint.com/_forms/default.aspx?wa=wsignin1.0The context creation works fine:
The context setup works fine:
I I try to execute a query, I receive an error:
result = self.context.search.post_query(query_text=f"FileName:'{file_name}'").execute_query()Error:
Nothing has changed in the code from my side in the last year, so do you know if something has changed on the OFFICE side ?
I am unsing REST API Office365-REST-Python-Client 2.5.13, but the behaviour is the same with the latest version (2.6.2)