Facing ImportError: cannot import name 'ModelParameters' (Python)

Question

I am using the module ydata_synthetic (github link) for generating synthetic timeseries datasets. After installing the package, I ran the following commands:

from os import path
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt

from ydata_synthetic.synthesizers import ModelParameters
from ydata_synthetic.preprocessing.timeseries import processed_stock
from ydata_synthetic.synthesizers.timeseries import TimeGAN

I am receiving the following error:

ImportError                               Traceback (most recent call last)
<ipython-input-11-9f2f25e511c0> in <module>
      4 import matplotlib.pyplot as plt
      5 
----> 6 from ydata_synthetic.synthesizers import ModelParameters
      7 from ydata_synthetic.preprocessing.timeseries import processed_stock
      8 from ydata_synthetic.synthesizers.timeseries import TimeGAN

ImportError: cannot import name 'ModelParameters'

How can I solve this error?

Answer 1

Please make sure, that the virtual environment, where you installed the package is the same one where you try to execute your code. In case of venv or anaconda, you need to explicitly activate it in the console/terminal, then use pip to install your package and then also use that activated environment to execute your python script. If you are using an IDE, you need to set your IDE python interpreter to that specific new environment you created and installed the packe in.

Answer 2

Unexpected solution I found:

Use Python 3.7 (not 3.6, or 3.8+).

It seems like much of the code requires features that were new to 3.7 (eg namedtuple with default values), but the codebase has not yet been adjusted to run with python 3.8 or later.