TL;DR: this is currently (dec 2017) simply not supported on Windows.
The install is broken. You can get jpterm.py
from the project's GitHub page here and pop it into your \pythonXX\Scripts\
folder.
Then you'll get this:
Traceback (most recent call last):
File "C:\Python36\Scripts\jpterm.py", line 239, in <module>
sys.exit(main())
File "C:\Python36\Scripts\jpterm.py", line 228, in main
screen = urwid.raw_display.Screen()
File "C:\Python36\lib\site-packages\Traceback (most recent call last):
File "C:\Python36\Scripts\jpterm.py", line 239, in <module>
sys.exit(main())
File "C:\Python36\Scripts\jpterm.py", line 228, in main
screen = urwid.raw_display.Screen()
File "C:\Python36\lib\site-packages\urwid\raw_display.py", line 85, in __init__
fcntl.fcntl(self._resize_pipe_rd, fcntl.F_SETFL, os.O_NONBLOCK)
NameError: name 'fcntl' is not defined\raw_display.py", line 85, in __init__
fcntl.fcntl(self._resize_pipe_rd, fcntl.F_SETFL, os.O_NONBLOCK)
**NameError: name 'fcntl' is not defined**
...and looking it up in the urwid
project issues (the thing that draws "windows" in the terminal), you'll get this:
https://github.com/urwid/urwid/issues/152
which basically says 'urwid doesn't support Windows'.