yo this is interesting

[ZAXERTY]

im learning python im not fully into it yet plus anything i develop never had this error before but anyway heres your error
i did python3 loader.py droid.txt -pthread

File "/usr/lib64/python3.6/subprocess.py", line 1364, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'adb': 'adb'

[215B5D]

You need to have ADB installed on the system for this to work