Installation issue while installing ParlAI (Blenderbot2)

Question

need your help with an installation issue.

I am running a Ubuntu 20.4 machine and trying to install BlederBot2. https://github.com/facebookresearch/ParlAIe

Using the following commands

pip install parlai
cd ~/ParlAI; python setup.py develop

It starts to try install but the I get the following message

ERROR: markdown 3.3.6 has requirement importlib-metadata>=4.4; python_version < "3.10", 
but you'll have importlib-metadata 4.2.0 which is incompatible.

I am very new to Python and would appreciate your help in understanding how this can be solved.

Answer 1

i'm having the exact same issue. But, first, it appears parlAI doesn't support python 3.10, you have to look for a 3.9 or 3.8 version. Then, I'm force trying to get the right version of importlib-metadata by using:

pip install importlib-metadata==4.4

You can see which version best suits you, but! don't forget to downgrade your python first.

I just got the solution. Maybe this works for you too:

## First, in order to change your python version, use conda.
## If you don't know what it is, I highly recommend you to 
## search it. Well, the code:
conda create -n my_env python=3.8 ## Downgrade the python just for the project
conda activate my_env

cd ~/.conda/envs/my_env
git clone https://github.com/facebookresearch/ParlAI.git
cd ParlAI
pip install -r requirements.txt
python3 setup.py develop