why do I get an error when trying to run swift language in mac terminal with $ swift

Question

I'm trying to run swift in mac terminal with this simple command:

$ swift

but I get a load of errors every time

ImportError: No module named six
Traceback (most recent call last):
  File "<string>", line 1, in <module>
NameError: name 'run_one_line' is not defined
Traceback (most recent call last):

continued for about a thousand lines ...

do I need to install a package or something

Answer 1

Are you using Brew to install Python versions on your macOS ?

I fix it uninstall python version installed from Brew.

brew uninstall --force python

That suited me !