Swift.get_device_info() can not be run

[taniguchi-t-nmri]

Hello. At first, I would like to say "thank you for your development of pyuf".
I tried to run "test_swift_api.py".
But, it will not proceed after "device info:" is printed. (swift.get_device_info())
Please tell me the solution to run "test_swift_api.py".

The system and environment are as follows:
0. Windows10, and laptop

1. Anaconda3 (python3.6.3)
2. uArm Swift (not Pro)

As a supplement, I can control uArm Swift with UarmStudio.