What compiler (and version) did you use? Microsoft (R) C/C++ Optimizing Compiler Version 19.36.32537 for x86 What is your version of the Oracle Client (e.g. Instant Client)? How was it installed?
>>> cx_Oracle.init_oracle_client(lib_dir=r"C:\oracle\instantclient_19_11") ODPI [08484] 2021-07-07 10:50:25.266: Context Parameters: ODPI [08484] 2021-07-07 10:50:25.267: Oracle Client Lib Dir: ...
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