Need information

Now, I have a problem with my odbc driver with retrieving certain type of data. I am on a Linux Ubuntu vm, I have configured all the files necessary for the connection to the IRIS database. I can connect with the isql command and display all the data, but my problem is that I use python and therefore with the pyodbc library and I cannot recover my varchar type data. for example, it correctly recovers date type data but impossible with other data types. I added parameters like 'charset' or 'ansi=True', used CAST, CONVERT, checked the encoding etc. nothing works. Does anyone have an idea of ​​my problem and could help me? Thanks in advance.