pythonpython-3.xlooker

Can't import Looker API anymore

When trying to

import looker_sdk

in my code, I get a lot of error messages, and can't use the API anymore... I was able to use this 3 weeks ago, and haven't change my code at all. I went on 2 weeks vacation and it didn't work anymore.

Here's the traceback:

Traceback (most recent call last):
  File "C:\Users\Humilton\Desktop\Main\Tests\Looker_Download_Look_Receive_Dates.py", line 1, in <module>
    import looker_sdk
  File "C:\Users\Humilton\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\looker_sdk\__init__.py", line 32, in <module>
    from looker_sdk.sdk.api31 import methods, methods as methods31  # noqa:F401
  File "C:\Users\Humilton\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\looker_sdk\sdk\api31\methods.py", line 32, in <module>
    from . import models as mdls
  File "C:\Users\Humilton\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\looker_sdk\sdk\api31\models.py", line 11935, in <module>
    sr.converter31.register_structure_hook(
  File "C:\Users\Humilton\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\cattr\converters.py", line 186, in register_structure_hook
    self._structure_func.register_cls_list([(cl, func)])
  File "C:\Users\Humilton\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\cattr\multistrategy_dispatch.py", line 45, in register_cls_list
    self._single_dispatch.register(cls, handler)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64__qbz5n2kfra8p0\lib\functools.py", line 856, in register
    raise TypeError(
TypeError: Invalid first argument to `register()`. ForwardRef('AccessToken') is not a class.
[Finished in 1.4s]

It's a work laptop. I've reinstalled Python (Python 3.10.2). I've reinstalled the Looker SDK (using pip).

I'm trying to use the Looker SDK, so I can download data from the Looker website at work. The import statement is the only code I'm executing. Anyone who knows what causes the error?

Solution

  • @raphael was correct. It seems like a bug introduced with Python 3.10. It seems like the work computer had installed a new Python version automatically.

    I uninstalled Python (all versions) and then installed Python 3.8 (Btw: Python 3.9 didn't work for me).

    Then I reinstalled Looker-sdk via pip, and it works.