Windows, PyCharm: DPI-1047: Cannot locate a 32-bit Oracle Client library

Question

I need help, I'm getting this error all the time. ''' Traceback (most recent call last): File "C:/Users/DELL/PycharmProjects/Anonimizacija/OracleConnect.py", line 3, in con = cx_Oracle.connect("andjela", "andjela", "localhost/xe") cx_Oracle.DatabaseError: DPI-1047: Cannot locate a 32-bit Oracle Client library: "C:\\app\\DELL\\product\\18.0.0\\dbhomeXE\\bin\\oci.dll is not the correct architecture". See https://cx-oracle.readthedocs.io/en/latest/user_guide/installation.html for help ''' I don't know how to fix it.

Answer 1

You have a 32-bit python but a 64-bit Oracle database.

The best thing would be install a 64-bit Python.

Or you could upgrade to cx_Oracle to 8, download a 32-bit Oracle Instant Client and unzip it, and then pass the Instant Client directory to cx_Oracle 8's init_oracle_client() :

import cx_Oracle
import sys

try:
    cx_Oracle.init_oracle_client(lib_dir=r"C:\oracle\instantclient_19_6")
except Exception as err:
    print("Whoops!")
    print(err);
    sys.exit(1);

See the cx_Oracle doc Using cx_Oracle.init_oracle_client() to set the Oracle Client directory .

With this function you do not need to add the Instant Client directory to PATH (which might impact Oracle XE database use).