ImportError: cannot import name 'Union' from '_ctypes' (unknown location)

[ciuffoly]

If I start from compiled package cannot add modules

pkgadd -d python-3.2.2-sol10-sparc-local

The following packages are available:
1 SMCpyth3 python
(sparc) 3.2.2

Select package(s) you wish to process (or 'all' to process
all packages). (default: all) [?,??,q]: 1

Processing package instance <SMCpyth3> from </presidio_sun/SUNFREEWARE/python/python-3.2.2-sol10-sparc-local>

python(sparc) 3.2.2
The Python Group
Using </usr/local> as the package base directory.
## Processing package information.
## Processing system information.
8 package pathnames are already properly installed.
## Verifying disk space requirements.
## Checking for conflicts with packages already installed.
## Checking for setuid/setgid programs.

Installing python as <SMCpyth3>

## Installing part 1 of 1.
/usr/local/bin/2to3 <symbolic link>
/usr/local/bin/2to3-3.2
/usr/local/bin/idle3 <symbolic link>
/usr/local/bin/idle3.2
/usr/local/bin/pydoc3 <symbolic link>
/usr/local/bin/pydoc3.2
/usr/local/bin/python3
/usr/local/bin/python3-config <symbolic link>
........

/usr/local/bin/python3
Python 3.2.2 (default, Nov 16 2011, 05:23:55)
[GCC 3.4.6] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
>>>

cd pysftp-0.2.9$
/usr/local/bin/python3 setup.py install
Traceback (most recent call last):
File "setup.py", line 3, in <module>
from setuptools import setup
ImportError: No module named setuptools

/usr/local/bin/python3
Python 3.2.2 (default, Nov 16 2011, 05:23:55)
[GCC 3.4.6] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/local/lib/python32.zip', '/usr/local/lib/python3.2', '/usr/local/lib/python3.2/plat-sunos5', '/usr/local/lib/python3.2/lib-dynload', '/usr/local/lib/python3.2/site-packages']
>>>

find /usr/local/ -name _socket*
/usr/local/lib/python3.8/site-packages/_socket.so
/usr/local/lib/python3.8/lib-dynload/_socket.so