Installation problem

[Yen410]

I tried 'pip install six' and 'pip install zipcodetw'.
And package 'six' is exited, but error still occurs

Collecting zipcodetw
Using cached zipcodetw-0.6.8.tar.gz (592 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [24 lines of output]
...
import six
ModuleNotFoundError: No module named 'six'
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

Thank for your help