"source activate rmg_env" stopped working -- on new macOS?

[PWstmrlnd]

When I run "source activate rmg_env" on my MacBook Pro (2019) running macOS 10.15.2 Catalina, I'm getting:
/Users/mcninch/anaconda2/envs/rmg_env/etc/conda/activate.d/keras_activate.sh:2: = not found

My rmg ran fine before the OS update. I checked the entire path and it's fine, giving the shell script:

**#!/bin/bash

if [ "$(uname)" == "Darwin" ]
then
# for Mac OSX
export KERAS_BACKEND=tensorflow
elif [ "$(uname)" == "Linux" ]
then
# for Linux
export KERAS_BACKEND=theano
fi**

Ideas???

[alongd]

Try conda activate rmg_env instead

[PWstmrlnd]

No, still got:
/Users/mcninch/anaconda2/envs/rmg_env/etc/conda/activate.d/keras_activate.sh:2: = not found

[mliu49]

This was also reported in keras-team/keras#9029 in January of 2018, with no responses. According to this StackOverflow comment, this script is part of how conda-forge packages keras. A similar error is reported in conda-forge/toolchain-feedstock#49, which points towards this being an issue with zsh, which became the default shell in MacOS Catalina.

If you prefer using zsh, there are some comments in the conda-forge issue about how to fix this error. Otherwise, I would suggest setting your default shell back to bash: How to change default shell in MacOS.

[PWstmrlnd]

Yes! I reset to bash, and now the calculation is chugging along. Thank you.