Can't seem to run train.py on OS X catalina

[KAltieri]

Can't seem to run train.py on OS X catalina

[amidos2006]

What is your python version?

[KAltieri]

Python version is: Python 2.7.16
Python3 version is: Python 3.8.1

[amidos2006]

First of all, make sure you are always using new python (3.5 or newer) don't try 2.7 ever and make sure that when you try to run train.py that this is the case.

The error you are getting is because you are trying to run the code using python 2.7. Here is an experiment showing that **varName is not supported in 2.7 (copied from my console):

Here is the same experiment with newer python (3.5.2):

To make sure this is not happening always use anaconda to manage your virtual environment so there is not two python version installed at the same place.

[KAltieri]

Okay so I tried the anaconda way of doing it based on the ReadMe and got this error when trying to run the train.py after installing the necessary dependencies:

Traceback (most recent call last):
File "train.py", line 5, in
from model import FullyConvPolicyBigMap, FullyConvPolicySmallMap, CustomPolicyBigMap, CustomPolicySmallMap
ImportError: cannot import name 'FullyConvPolicyBigMap' from 'model' (/Users/Kevin/Desktop/gym-pcgrl/model.py)

Is there a step that I misread from the readme? Thanks!

[amidos2006]

Are you sure the model.py is there beside train.py because that error means it can't see model.py

[KAltieri]

the model.py is there, I have made no changes to the original repo

[amidos2006]

mmm... I don't get why it can't see that python file. Just try in the python console to import any class from model.py if It can't maybe OSX Catalina has some security issues.

[KAltieri]

alright thanks

[smearle]

There are a few different "Policy" classes defined in model.py, maybe train.py is trying to import a Policy that is not defined in model.py. You might get away with commenting out the offending import.

[KAltieri]

So that tip was helpful, I got rid of the FullyConvPolicyBigMap issue, but now my new issue is that its looking for a file called policy. Is there one that should be there that I'm missing, or is it something else entirely?

Traceback (most recent call last):
File "train.py", line 8, in
from policy import PPO2
ModuleNotFoundError: No module named 'policy'

[smearle]

You must be on the experimental FractalNet branch.
Try
git checkout master
then open train.py: there should be no such import line (instead, on line 8, we'll be importing policies from stable_baselines).

[amidos2006]

Yup, I was trying to understand what is happening because that code looks old with some new one.

[KAltieri]

Okay thanks! Maybe thats where all my issues are stemming from

[smearle]

I just tried cloning a fresh repository, and can confirm that was on the master branch, and code was able to run (after making a 'runs' directory to log training progress). You must have accidentally switched branches somehow.
You can run git branch -a to view all available branches (I should probably delete most of them...), and check which branch you are on.