Installation Issue

[SuperXiang]

• Issue name:

Could not find a version that satisfies the requirement _pgl >= 1.2.0_ (from paddlehelix)

• URL:

Your contact information: yingfei_xiang@yahoo.com

• Expected result:

Download and install successfully

• Actual result:

• Action taken:

1. Downgraded to python = 3.6 or 3.7
2. Conda install python 3.6/3.7 sandbox environment