cx_Oracle error. DPI-1047: Cannot locate a 64-bit Oracle Client library

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The easiest solution is as follows:

  1. Download 64-bit version of oracle instantClient from: https://www.oracle.com/database/technologies/instant-client/winx64-64-downloads.html
  2. Copy the dll files in the instantclient directory to the python directory, as shown below

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That is it!

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