Installation Error:Tribon conflicted with Python3.8?

[sam2016]

It still call Tribon.
Try pip from Scripts folder ...Python38\Scripts.

# Test pip
C:\Python38\Scripts
λ pip -V
pip 19.2.3 from c:\python38\lib\site-packages\pip (python 3.8)

# Go one down
C:\Python38\Scripts
λ cd ..

# Start IDLE
C:\Python38
λ python -m idlelib

I tried go into Python installed routine and running "pip -V", still not working. As below:

D:\Program Files\Python\Python38\Scripts>pip -V
Python path configuration:
  PYTHONHOME = (not set)
  PYTHONPATH = 'C:\Tribon\M3\Vitesse;C:\Tribon\M3\Vitesse\Basic_Design;C:\Tribon\M3\Vitesse\Lib;C:\Tribon\M3\Vitesse\Projects;C:\Tribon\M3\bin\python;'
  program name = 'd:\program files\python\python38\python.exe'
  isolated = 0
  environment = 1
  user site = 1
  import site = 1
  sys._base_executable = 'd:\\program files\\python\\python38\\python.exe'
  sys.base_prefix = 'd:\\program files\\python\\python38'
  sys.base_exec_prefix = 'd:\\program files\\python\\python38'
  sys.executable = 'd:\\program files\\python\\python38\\python.exe'
  sys.prefix = 'd:\\program files\\python\\python38'
  sys.exec_prefix = 'd:\\program files\\python\\python38'
  sys.path = [
    'C:\\Tribon\\M3\\Vitesse',
    'C:\\Tribon\\M3\\Vitesse\\Basic_Design',
    'C:\\Tribon\\M3\\Vitesse\\Lib',
    'C:\\Tribon\\M3\\Vitesse\\Projects',
    'C:\\Tribon\\M3\\bin\\python',
    '',
    'd:\\program files\\python\\python38\\python38.zip',
    'd:\\program files\\python\\python38\\DLLs',
    'd:\\program files\\python\\python38\\lib',
    'd:\\program files\\python\\python38',
  ]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
  File "C:\Tribon\M3\bin\python\encodings\__init__.py", line 109
    raise CodecRegistryError,\
                            ^
SyntaxError: invalid syntax

Current thread 0x000018a0 (most recent call first):
<no Python frame>

D:\Program Files\Python\Python38\Scripts>