This is happening for all wcurses application on my computer, and I don't know why, but I guess other might have this issue too.
The right side of all characters are cut of too early. This is especially bad for capital letters. In the submitted picture you can see my name is EFP or EPF or... You can't really tell.
I looked at the wcurses sources, but couldn't figure out an easy way to set the with. If you look at curses_win32.cpp there are some font loading, but the width is not set there. Perhaps manually setting the width in InitializeDefaultFont might work, but I haven't tried. You could consider moving to SDL with pygame and using fonts from .bmp to be sure to get the same result on all platforms.
Do you perhaps know of any other curses implementations for python on win32?
I hope you find a solution for this as I've been looking forward to trying pyro.