Can not fine tuning lanague model using Colab

[Kowsher]

When I'm going to train to fine-tune LM in colab it says
Please install apex to use fp16 training
cannot import name 'UnencryptedCookieSessionFactoryConfig' from 'pyramid.session' (unknown location) During handling of the above exception

[Elzic6]

Hi Kowsher,
I had the same issue, then after a while..., I found a solution that works for me :
Problem : when you install apex in colab, you get multiple versions of cuda installed, and you have to indicate the good version to use : I found the solution here (look at the comment : artitw commented on 5 Apr 2020) :
NVIDIA/apex#754

to sumup :
1- open your colab notebook,
2- connect your google drive (from google.colab import drive),
3- install apex with the following code
export CUDA_HOME=/usr/local/cuda-10.1
pip install -v --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" pytorch-extension

hope this will works for you too :)