Import error when trying to import CCA [BUG]

[sja14]

Hi,
I'm using your awesome library in a financial engineering course.
In Colab, when I run the line:

from frds.measures import cca

I get the following import error related to the statistics library dependency:

ImportError                               Traceback (most recent call last)
[<ipython-input-23-f3b52035cd61>](https://localhost:8080/#) in <module>
----> 1 from frds.measures import cca
      2 

2 frames
[/usr/local/lib/python3.7/dist-packages/frds/measures/__init__.py](https://localhost:8080/#) in <module>
      2 
      3 """
----> 4 from .bank import *
      5 from .corporate import *
      6 from .general import *

[/usr/local/lib/python3.7/dist-packages/frds/measures/bank.py](https://localhost:8080/#) in <module>
      1 from .func_absorption_ratio import absorption_ratio
----> 2 from .func_dip import distress_insurance_premium
      3 from .func_mes import marginal_expected_shortfall
      4 from .func_ses import systemic_expected_shortfall
      5 from .func_cca import cca

[/usr/local/lib/python3.7/dist-packages/frds/measures/func_dip.py](https://localhost:8080/#) in <module>
      1 import math
----> 2 from statistics import NormalDist
      3 import numpy as np
      4 from numpy.random import RandomState
      5 

ImportError: cannot import name 'NormalDist' from 'statistics' (/usr/lib/python3.7/statistics.py)

Your help is much appreciated!
Many thanks!

[mgao6767]

Hi @sja14 , NormalDist is introduced in Python3.8. Could you please try to use a higher version and see?

[sja14]

Upgrading to Python 3.9 on Colab didn't help, but when I used a standard Jupyter notebook on my desktop, everything worked perfectly. Thank you!