如何将变量从一个 function 传递到另一个 function

Question

我正在制作基于 python 的 Email 广播，其中我创建了 email 之类的条目，通过，还有 csv 浏览器，它将浏览一个 Email_list_container 文件和一个提交按钮，它将调用发送邮件 function 来发送批量 8370828 问题 function是当浏览器用于从 csv 获取电子邮件时，它存储到一个变量，然后返回到 function，但是当我在发送邮件中调用此变量时，function 不允许我在那里使用它。 与附件 function 相同，也不会发送邮件 function。

我试过全球

newvar = browse()

并调用 new var 但这调用整个 function 再次弹出 new window 以打开另一个没有任何意义的文件。 帮帮我伙计们。

from tkinter import *
import tkinter.messagebox as msg
import smtplib as smtp
import csv
from itertools import chain

#browse function which stores value from csv file
def browse():
    from itertools import chain
    file_path=filedialog.askopenfilename(title="Open CSV file")
    with open(file_path) as csvfile:
        read = csv.reader(csvfile)
        for row in read:
            ini_list.append(row)
    flatten_list = list(chain.from_iterable(ini_list))
    rcvr_emails =list(flatten_list)
    # print(rcvr_emails)
    file_label = Label(window,text=file_path, border=0, bg='#BAE1E3',font="inter 10", fg="grey").place(x=330,y=230)
    recemail = rcvr_emails
 
#what i want is submit function to grab a variable from browse function as email list 

def submit():
    try:
        email = login_email.get()
        pass_word = login_pass.get()
        subject = email_subject.get()
        body = email_body.get()
        server = smtp.SMTP("smtp.gmail.com",587)
        server.starttls()
        server.ehlo()
        server.login(email,pass_word)
        massage = "subject:{}\n\n{}".format(subject,body)
        server.sendmail(email,recemail,massage)
        server.quit()
        msg.showinfo("Status","Mails have been sent to the Targatted Email's List.\nThank You for using our services.")
    
    except:
        msg.showwarning("ERROR","SMTP API could not login the credentials,\nPlease check Email & Password then try again.")

Answer 1

只需从browse器 function 返回recemail ，然后将其作为参数传递给submit function：

 def browse():
        from itertools import chain
        file_path=filedialog.askopenfilename(title="Open CSV file")
        with open(file_path) as csvfile:
            read = csv.reader(csvfile)
            for row in read:
                ini_list.append(row)
        flatten_list = list(chain.from_iterable(ini_list))
        rcvr_emails =list(flatten_list)
        # print(rcvr_emails)
        file_label = Label(window,text=file_path, border=0, bg='#BAE1E3',font="inter 10", fg="grey").place(x=330,y=230)
        recemail = rcvr_emails
        return recemail
def submit(email_list):
// your code

然后在你的主程序中：

received_email = browse()

submit(received_email)

或者在一行中：

submit(browse())