question: Error importing pytorch lighting
context: Hi,
  I am getting this weird error; I was able to run my code before and today I got this:
  import pytorch_lightning as pl
  "~/dir/miniconda3/envs/pytorchenv/lib/python3.7/site-packages/pytorch_lightning/init.py", line 66, in 
  from pytorch_lightning import metrics
  ImportError: cannot import name 'metrics' from 'pytorch_lightning'
answer: @mshooter Hi, could you try reinstalling it and running it again? I didn't experience the issue with the following command on Google Colab:
  !pip install pytorch-lightning --upgrade
  from pytorch_lightning import metrics
  If the problem persists, could you run the following commands and share the output?
  $ wget https://raw.githubusercontent.com/PyTorchLightning/pytorch-lightning/master/tests/collect_env_details.py
  $ python collect_env_details.py