Error de excepción de Python "número mágico incorrecto en 'requests.packages': b'\x03\xf3"

Descripción

In some scenarios, such as calling a Data Interoperability Spatial ETL Tool from a Python script, the following error is returned:

bad magic number in 'requests.packages': b'\x03\xf3

The "magic number" comes from UNIX-type systems where the first few bytes of a file held a marker indicating the file type. Python puts a similar marker into its pyc files when it creates them. The Python interpreter ensures that this number is correct when loading the file.

Causa

Anything that damages this magic number will cause the error. This includes editing the .pyc file or trying to run a .pyc file from a different version of Python (usually later) than your interpreter.

Solución o solución alternativa

1. If the issue is with your .pyc files, delete them and let the interpreter re-compile the .py files. On UNIX-type systems, that could be something as simple as:

rm *.pyc

or:

find . -name '*.pyc' -delet

2. Uninstall the Data Interoperability extension.
3. Reinstall the correct version of Python.
4. Reinstall Data Interoperability.