在derger（）中使用.addstr（）的奇怪錯誤 - 在Python Curses中的對象

Question

我試圖將curses中的一個窗口分成幾個子窗口（使用derwin() ）。

代碼創建了兩個子窗口，我可以添加一個字符串; 第一個功能沒問題。 第二個幾乎完全相同但是當我嘗試使用addstr()添加字符串時給出了一個錯誤

class Window(GUI):
'''
Window-object
'''

def __init__(self, y_max , x_max, y_pos , x_pos, Target, screen):
    self.Win_Count = 0
    self.y_pos = y_pos
    self.x_pos = x_pos
    self.y_max = y_max
    self.x_max = x_max
    self.parent = screen 
    self.Target = Target

    #Window-Objects
    self.Win = self.create_win_parent(y_pos)
    self.Name_Win = self.create_name_win(self.Win)
    self.IP_Win = self.create_ip_win(self.Win)

def create_win_parent(self, y_pos):
    y_size = 1
    x_size = self.x_max - self.x_pos
    new_win_obj = self.parent.derwin(y_size, x_size, self.y_pos, 0)
    self.Win_Count += 1
    return new_win_obj

def create_name_win(self, Win_Obj):
    x = Win_Obj.derwin(1,40, 0,0)
    x.box()
    x.addstr(0,5," CUSTOMER NAME ")
    return x

def create_ip_win(self, Win_Obj):
    x = Win_Obj.derwin(1,15, 0,41)
    x.box()
    x.addstr(0,5," IP-ADDRESS ")
    return x

我收到這個模糊的錯誤：

    Traceback (most recent call last):
  File "./2pollng.py", line 229, in <module>
    wrapper(main)                    # Enter the main loop
  File "/usr/lib/python2.6/curses/wrapper.py", line 43, in wrapper
    return func(stdscr, *args, **kwds)
  File "./2pollng.py", line 222, in main
    Main_App.Run(screen)
  File "./2pollng.py", line 106, in Run
    self.Create_Win(self.Inv.index(e), e)
  File "./2pollng.py", line 90, in Create_Win
    Win_Obj = Window(self.y_max, self.x_max, y_pos, x_pos, Target_x, self.screen)
  File "./2pollng.py", line 141, in __init__
    self.IP_Win = self.create_ip_win(self.Win)
  File "./2pollng.py", line 160, in create_ip_win
    x.addstr(0,5," IPADDRESS ")
_curses.error: addstr() returned ERR

Answer 1

def create_ip_win(self, Win_Obj):
    x = Win_Obj.derwin(1,15, 0,41)
    x.box()
    x.addstr(0,5," IP-ADDRESS ")
    return x

在這個函數中， Win_Obj.derwin(1,15, 0,41)表明x-pos應該在0到14之間。而在代碼addstr(0,5," IP-ADDRESS ") x從5開始，長度為0字符串" IP-ADDRESS "大於（15-5）。 所以你得到了錯誤。

Answer 2

不確定具體細節，但它（如解釋器所示，duh）與字符串有關，而且它們在我創建的子窗口中沒有足夠的空間。