How to solve this error on python pip?

I used Anaconda3 and something want wrong… all pip commend is not working

How to solve this problem?
(base) C:\WINDOWS\system32>pip
Traceback (most recent call last):
File “c:\programdata\anaconda3\lib\”, line 193, in _run_module_as_main
“__main__”, mod_spec)
File “c:\programdata\anaconda3\lib\”, line 85, in _run_code
exec(code, run_globals)
File “C:\ProgramData\Anaconda3\Scripts\”, line 5, in <module>
File “c:\programdata\anaconda3\lib\site-packages\”, line 2, in <module>
import pip._internal.utils.inject_securetransport # noqa
ModuleNotFoundError: No module named ‘pip._internal.utils.inject_securetransport’

I have the same problem when using any kind of pip commands… Have you found a solution for this problem?