图形密码认证系统运行时触发Tkinter回调错误，请求排查

问题说明 #

开发图形密码认证系统时，运行主类并点击按钮触发Tkinter回调错误，核心问题是系统找不到garbledImages路径。

主类代码 #

# 导入所需库
from tkinter import *
from tkinter import ttk
from tkinter import font
import custom_button
import garbled
import obscure
import password
import segments


def load_garbled(window, menu_frame):
    menu_frame.pack_forget()
    garbled.start(window)


def load_obscured(window, menu_frame):
    menu_frame.pack_forget()
    obscure.start(window)


def load_segmented(window, menu_frame):
    menu_frame.pack_forget()
    segments.start(window)


def load_password(window, menu_frame):
    menu_frame.pack_forget()
    password.start(window)


def start(win):
    win.geometry("1280x600")
    win.title("图形密码认证系统")

    menu_frame = Frame(win, height=600, width=1280)
    menu_frame.pack(fill='both', expand=1)

    label = Label(menu_frame, text="图形密码认证系统", font=('Freestyle Script', 54))
    label.pack(padx=40, pady=30)

    btn_height = 90
    btn_width = 450
    btn_font = ('Trebuchet MS', 14)

    btn1 = custom_button.TkinterCustomButton(master=menu_frame, text="测试混淆图片", text_font=btn_font,
                                             height=btn_height, width=btn_width, corner_radius=10,
                                             command=lambda: load_garbled(win, menu_frame)).place(relx=0.3, rely=0.4,
                                                                                                  anchor=CENTER)
    btn2 = custom_button.TkinterCustomButton(master=menu_frame, text="测试分割图片", text_font=btn_font,
                                             height=btn_height, width=btn_width, corner_radius=10,
                                             command=lambda: load_segmented(win, menu_frame)).place(relx=0.3,
                                                                                                    rely=0.7,
                                                                                                    anchor=CENTER)
    btn3 = custom_button.TkinterCustomButton(master=menu_frame, text="测试模糊图片", text_font=btn_font,
                                             height=btn_height, width=btn_width, corner_radius=10,
                                             command=lambda: load_obscured(win, menu_frame)).place(relx=0.7,
                                                                                                   rely=0.4,
                                                                                                   anchor=CENTER)
    btn4 = custom_button.TkinterCustomButton(master=menu_frame, text="测试密码/图片认证",
                                             text_font=btn_font,
                                             height=btn_height, width=btn_width, corner_radius=10,
                                             command=lambda: load_password(win, menu_frame)).place(relx=0.7,
                                                                                                   rely=0.7,
                                                                                                   anchor=CENTER)

    win.mainloop()


if __name__ == "__main__":
    win = Tk()
    start(win)

完整错误追踪信息 #

Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Users\jalaj\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 1921, in __call__
    return self.func(*args)
  File "c:\Users\jalaj\Downloads\Python Course with Notes\2. Chapter 2\.vscode\python\Graphical-Password-Authentication-System-main\Graphical-Password-Authentication-System-main\custom_button.py", line 274, in clicked
    self.function()
  File "c:\Users\jalaj\Downloads\Python Course with Notes\2. Chapter 2\.vscode\python\Graphical-Password-Authentication-System-main\Graphical-Password-Authentication-System-main\main_menu.py", line 47, in <lambda>
    command=lambda: load_garbled(win, menu_frame)).place(relx=0.3, rely=0.4,
  File "c:\Users\jalaj\Downloads\Python Course with Notes\2. Chapter 2\.vscode\python\Graphical-Password-Authentication-System-main\Graphical-Password-Authentication-System-main\main_menu.py", line 13, in load_garbled
    garbled.start(window)
  File "c:\Users\jalaj\Downloads\Python Course with Notes\2. Chapter 2\.vscode\python\Graphical-Password-Authentication-System-main\Graphical-Password-Authentication-System-main\garbled.py", line 19, in start
    garbledImages = utils.getGarbledImages()
  File "c:\Users\jalaj\Downloads\Python Course with Notes\2. Chapter 2\.vscode\python\Graphical-Password-Authentication-System-main\Graphical-Password-Authentication-System-main\utils.py", line 23, in getGarbledImages
    imagePaths = os.listdir("garbledImages")
FileNotFoundError: [WinError 3] 系统找不到指定的路径: 'garbledImages'

错误核心与解决办法 #

错误核心 #

utils.py中的getGarbledImages函数尝试读取garbledImages目录，但该目录不存在，或者代码使用的相对路径与实际运行目录不匹配。

解决办法 #

• 创建缺失目录：在项目根目录下手动新建garbledImages文件夹，并放入测试用的混淆图片。
• 改用绝对路径：避免依赖相对路径的不确定性，修改utils.py中的路径代码，示例：

  import os
  # 获取当前脚本所在目录的绝对路径
  script_dir = os.path.dirname(os.path.abspath(__file__))
  # 拼接目标目录的绝对路径
  image_dir = os.path.join(script_dir, "garbledImages")
  imagePaths = os.listdir(image_dir)
  

• 检查运行目录：确保运行Python脚本时，终端的工作目录是项目根目录，而非其他子目录。

内容的提问来源于stack exchange，提问作者joji