Патч для юзерфрендли-переопределения клавиш (ничего своего не заменял, клавиши все дефолтные):

13,32d12
< keys = {
< 	"prevmsg": curses.KEY_LEFT,
< 	"nextmsg": curses.KEY_RIGHT,
< 	"up": curses.KEY_UP,
< 	"down": curses.KEY_DOWN,
< 	"screen_up": curses.KEY_PPAGE,
< 	"screen_down": curses.KEY_NPAGE,
< 	"firstmsg": curses.KEY_HOME,
< 	"lastmsg": curses.KEY_END,
< 	"fetch_mail": [ord("g"), ord("G")],
< 	"send_mail": [ord("s"), ord("S")],
< 	"enter_echo": [10, curses.KEY_RIGHT],
< 	"exit_client": curses.KEY_F10,
< 	"savemsg": [ord("w"), ord("W")],
< 	"save_favorites": [ord("f"), ord("F")],
< 	"answer": [ord("q"), ord("Q")],
< 	"deletemsg": curses.KEY_DC,
< 
< }
< 
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<         elif key == keys["up"] and cursor > 0:
---
>         elif key == curses.KEY_UP and cursor > 0:
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<         elif key == keys["down"] and cursor < len(echoareas) - 1:
---
>         elif key == curses.KEY_DOWN and cursor < len(echoareas) - 1:
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<         elif key == keys["screen_up"]:
---
>         elif key == curses.KEY_PPAGE:
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<         elif key == keys["screen_down"]:
---
>         elif key == curses.KEY_NPAGE:
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<         elif key == keys["firstmsg"]:
---
>         elif key == curses.KEY_HOME:
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<         elif key == keys["lastmsg"]:
---
>         elif key == curses.KEY_END:
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<         elif key in keys["fetch_mail"]:
---
>         elif key == ord("g") or key == ord("G"):
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<         elif key in keys["send_mail"]:
---
>         elif key == ord("s") or key == ord("S"):
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<         elif key in keys["enter_echo"]:
---
>         elif key == 10 or key == curses.KEY_RIGHT:
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<         elif key == keys["exit_client"]:
---
>         elif key == curses.KEY_F10:
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<         elif key == keys["prevmsg"] and msgn > 0:
---
>         elif key == curses.KEY_LEFT and msgn > 0:
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<         elif key == keys["nextmsg"] and msgn < len(msgids) - 1:
---
>         elif key == curses.KEY_RIGHT and msgn < len(msgids) - 1:
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<         elif key == keys["nextmsg"] and (msgn == len(msgids) - 1 or len(msgids) == 0):
---
>         elif key == curses.KEY_RIGHT and (msgn == len(msgids) - 1 or len(msgids) == 0):
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<         elif key == keys["up"] and y > 0:
---
>         elif key == curses.KEY_UP and y > 0:
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<         elif key == keys["screen_up"]:
---
>         elif key == curses.KEY_PPAGE:
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<         elif key == keys["screen_down"]:
---
>         elif key == curses.KEY_NPAGE:
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<         elif key == keys["down"]:
---
>         elif key == curses.KEY_DOWN:
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<         elif key == keys["firstmsg"]:
---
>         elif key == curses.KEY_HOME:
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<         elif key == keys["lastmsg"]:
---
>         elif key == curses.KEY_END:
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<         elif key in keys["savemsg"]:
---
>         elif key == ord("w") or key == ord("W"):
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<         elif key in keys["save_favorites"]:
---
>         elif key == ord("f") or key == ord("F"):
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<         elif not archive and (key in keys["answer"]):
---
>         elif not archive and (key == ord ("q") or key == ord("Q")):
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<         elif favorites and key == keys["deletemsg"]:
---
>         elif favorites and key == curses.KEY_DC:
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<         elif key == keys["exit_client"]:
---
>         elif key == curses.KEY_F10:

Это пока не все клавиши, просто некоторые там введены числом, и я ещё не смотрел, что они делают.