Python 正在尝试创建电子邮件日志系统，但数组保持空白

所以我尝试创建一种电子邮件日志系统，每行都有主题和消息预览，比如gmail

在

mainWindowsScript.py

中，我有一个“编写”按钮，用于将字符串附加到

getLogs.py

中的数组中，还有一个“日志”按钮，使用操作系统模块运行

getLogs.py

。在

getLogs.py

中，我只有一个

ListBox

。我使用tkinter创建按钮和

列表框

当我运行

mainWindowsScript.py

时，它首先打开在

getLogs.py

中创建的

列表框。但奇怪的是，当我关闭该窗口并单击“撰写”按钮时，我试图附加到的列表仍然是空的，使得
列表框
为空

真让人困惑，我需要帮助

这里是
mainWindowsScript.py
：

import tkinter as tk
from tkinter import ttk
import os

import getLogs as gl

mainWin = tk.Tk()

canvas = tk.Canvas(mainWin, width = 400, height = 400)
canvas.pack()

frame = tk.Frame(mainWin, bg = "gray")
frame.place(relx = 0, rely = 0, relwidth = 1, relheight = 1)


def compose():
    gl.tos.append("isybgf")
    #os.system("python email_gui.py")            #run another python file


def getEmailLogs():
    os.system("python getLogs.py")


composeButton = tk.Button(frame, bg = "blue", fg = "white", text = "COMPOSE", command = compose)
composeButton.place(relx = 0.3, rely = 0.2, relwidth = 0.4, relheight = 0.2)

logsButton = tk.Button(frame, bg = "blue", fg = "white", text = "LOGS", command = getEmailLogs)
logsButton.place(relx = 0.3, rely = 0.5, relwidth = 0.4, relheight = 0.2)

mainWin.mainloop()

import tkinter as tk

mainWind = tk.Tk()

canvas = tk.Canvas(mainWind, width = 400, height = 600)
canvas.pack()

frame = tk.Frame(mainWind, bg = "gray")
frame.place(relx = 0, rely = 0, relwidth = 1, relheight = 1)

mailLogs = tk.Listbox(frame)
mailLogs.place(relx = 0.1, rely = 0.05, relwidth = 0.8, relheight = 0.9)

tos = []
subjects = []
messages = []

print(tos)

mails = {
    "to:": tos,
    "subject:": subjects,
    "message:": messages
}

for i in range(0, len(tos)):
    emailLogTitle = "{}: {} - {}".format(mails["to:"][i], mails["subject:"][i], mails["message:"][i])
    mailLogs.insert('end', emailLogTitle)

mainWind.mainloop()

和
getLogs.py
：

import tkinter as tk
from tkinter import ttk
import os

import getLogs as gl

mainWin = tk.Tk()

canvas = tk.Canvas(mainWin, width = 400, height = 400)
canvas.pack()

frame = tk.Frame(mainWin, bg = "gray")
frame.place(relx = 0, rely = 0, relwidth = 1, relheight = 1)


def compose():
    gl.tos.append("isybgf")
    #os.system("python email_gui.py")            #run another python file


def getEmailLogs():
    os.system("python getLogs.py")


composeButton = tk.Button(frame, bg = "blue", fg = "white", text = "COMPOSE", command = compose)
composeButton.place(relx = 0.3, rely = 0.2, relwidth = 0.4, relheight = 0.2)

logsButton = tk.Button(frame, bg = "blue", fg = "white", text = "LOGS", command = getEmailLogs)
logsButton.place(relx = 0.3, rely = 0.5, relwidth = 0.4, relheight = 0.2)

mainWin.mainloop()

import tkinter as tk

mainWind = tk.Tk()

canvas = tk.Canvas(mainWind, width = 400, height = 600)
canvas.pack()

frame = tk.Frame(mainWind, bg = "gray")
frame.place(relx = 0, rely = 0, relwidth = 1, relheight = 1)

mailLogs = tk.Listbox(frame)
mailLogs.place(relx = 0.1, rely = 0.05, relwidth = 0.8, relheight = 0.9)

tos = []
subjects = []
messages = []

print(tos)

mails = {
    "to:": tos,
    "subject:": subjects,
    "message:": messages
}

for i in range(0, len(tos)):
    emailLogTitle = "{}: {} - {}".format(mails["to:"][i], mails["subject:"][i], mails["message:"][i])
    mailLogs.insert('end', emailLogTitle)

mainWind.mainloop()

使用
os.system（）
运行单独的程序，该程序无法访问当前程序中创建的数据。因为您导入了
getLogs
，所以您应该将代码放入函数中，以便在没有
os.system（）的情况下执行它

getLogs.py

import tkinter as tk

tos = []
subjects = []
messages = []

def log_window():

    #mainWind = tk.Tk()
    mainWind = tk.Toplevel()

    canvas = tk.Canvas(mainWind, width = 400, height = 600)
    canvas.pack()

    frame = tk.Frame(mainWind, bg = "gray")
    frame.place(relx = 0, rely = 0, relwidth = 1, relheight = 1)

    mailLogs = tk.Listbox(frame)
    mailLogs.place(relx = 0.1, rely = 0.05, relwidth = 0.8, relheight = 0.9)

    print(tos)

    mails = {
        "to:": tos,
        "subject:": subjects,
        "message:": messages
    }

    for i in range(0, len(tos)):
        emailLogTitle = "{}: {} - {}".format(mails["to:"][i], mails["subject:"][i], mails["message:"][i])
        mailLogs.insert('end', emailLogTitle)

    #mainWind.mainloop()

现在你可以执行了

def getEmailLogs():
    gl.log_window()

并且它可以访问
tos


因为两个窗口在同一个程序中运行，所以second不需要
mainloop（）
，它应该由
Toplevel（）
创建，而不是
Tk（）


顺便说一句：composer只添加了
tos
，所以后来的字典
mail
没有主题和消息。您可以创建一个包含邮件的列表，而不是为
收件人
，
主题
，
消息


麦皮

import tkinter as tk
import os

import getLogs as gl

# --- functions ---

def compose():
    gl.tos.append("isybgf")
    gl.subjects.append("isybgf")
    gl.messages.append("isybgf")
    # it could be better to keep it in one list ie.
    # mails.append( {'to': "isybgf", 'subject': "isybgf", 'message': "isybgf" } )

def getEmailLogs():
    gl.log_window()

# --- main ---

mainWin = tk.Tk()

canvas = tk.Canvas(mainWin, width=400, height=400)
canvas.pack()

frame = tk.Frame(mainWin, bg="gray")
frame.place(relx = 0, rely = 0, relwidth = 1, relheight = 1)

composeButton = tk.Button(frame, bg="blue", fg="white", text="COMPOSE", command=compose)
composeButton.place(relx=0.3, rely=0.2, relwidth=0.4, relheight=0.2)

logsButton = tk.Button(frame, bg="blue", fg="white", text="LOGS", command=getEmailLogs)
logsButton.place(relx=0.3, rely=0.5, relwidth=0.4, relheight=0.2)

mainWin.mainloop()


编辑：带有其他更改的版本-减少为重要元素。我将邮件保存在主程序中的一个列表
mails
，并作为参数发送到日志

main.py

import tkinter as tk
import getLogs as gl

# --- functions ---

def compose():
    mails.append( {'to': "user@domain.com", 'subject': "Read it", 'message': "Hello World!"} )

def get_email_logs():
    gl.log_window(mails)

# --- main --- (lower_case_names)

mails = []

main_window = tk.Tk()

compose_button = tk.Button(main_window, text="COMPOSE", command=compose)
compose_button.pack(fill='x')

logs_button = tk.Button(main_window, text="LOGS", command=get_email_logs)
logs_button.pack(fill='x')

close_button = tk.Button(main_window, text="CLOSE", command=main_window.destroy)
close_button.pack(fill='x')

main_window.mainloop()

getLogs.py

import tkinter as tk

def log_window(mails):

    window = tk.Toplevel()

    mail_logs = tk.Listbox(window)
    mail_logs.pack(fill='both', expand=True)

    close_button = tk.Button(window, text="CLOSE", command=window.destroy)
    close_button.pack(fill='x')

    for item in mails:
        mail_logs.insert('end', "{}: {} - {}".format( item["to"], item["subject"], item["message"] ))

将代码放入函数中，并在导入后运行函数。使用
os.system（“python getLogs.py”）
您运行一个单独的程序，该程序对您在
mainWindowsScript
中创建的列表
tos
一无所知-它以自己的空列表
tos
开始，并且无法访问在
mainWindowsScript.py
中创建的数据。顺便说一句：当您导入
import getLogs as gl
时，您将自动从中运行代码
getLogs.py
所以您可以在开始时看到它。如果您将代码放入函数中，那么它将不会在开始时运行它，当您按下按钮时，您可以将其作为
gl.function（）
运行-如果您想作为
os.system（“python getLogs.py”）运行，则不使用
os.system（）
然后您必须将
tos
中的数据保存到文件中，
getLogs.py
必须从文件中读取这些数据。请继续阅读，感谢所有提供解决方案的人！这真的很有帮助。