Module not found when running contourtool -o

[drventure]

I think i've got this installed right, no errors during the "python setup.py install"
When I run "contourtool -o x.csv"

I get a module not found

Traceback (most recent call last):
File "C:\Python38\Scripts\contourtool-script.py", line 11, in
load_entry_point('contourtool==0.1', 'console_scripts', 'contourtool')()
File "C:\Python38\lib\site-packages\pkg_resources_init_.py", line 490, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "C:\Python38\lib\site-packages\pkg_resources_init_.py", line 2862, in load_entry_point
return ep.load()
File "C:\Python38\lib\site-packages\pkg_resources_init_.py", line 2462, in load
return self.resolve()
File "C:\Python38\lib\site-packages\pkg_resources_init_.py", line 2468, in resolve
module = import(self.module_name, fromlist=['name'], level=0)
File "", line 259, in load_module
File "C:\Python38\lib\site-packages\contourtool-0.1-py3.8.egg\contourtool_init_.py", line 26, in
File "", line 259, in load_module
File "C:\Python38\lib\site-packages\contourtool-0.1-py3.8.egg\contourtool\astm.py", line 12, in
ModuleNotFoundError: No module named 'controlchars'

I've checked the egg file and the contourtool folder and that "controlchars.py" file is there.

Any ideas?

[drventure]

forgot to mention, running python 38 on windows 10. Not sure if that would make a difference.