实施例

Question

我在kivy中创建了一个非常简单的GUI，并尝试使用它向特定用户发送电子邮件，如何使用输入GUI的文本，因为我不熟悉GUI。这是我目前的代码：

import textwrap
import time
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.widget import Widget
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput



class Main(GridLayout):
    def __init__(self,**kwargs):
        super(Main, self).__init__(**kwargs)
        self.cols = 2


        self.add_widget(Label(text = "Who"))
        self.Who = TextInput(multiline = True)
        self.add_widget(self.Who)


        self.add_widget(Label(text = "What"))
        self.What = TextInput(multiline = True)
        self.add_widget(self.What)


        self.add_widget(Label(text = "Where"))
        self.Where = TextInput(multiline = True)
        self.add_widget(self.Where)


        self.add_widget(Label(text = "When"))
        self.When = TextInput(multiline = True)
        self.add_widget(self.When)


        self.add_widget(Label(text = "How"))
        self.How = TextInput(multiline = True)
        self.add_widget(self.How)


class AMAPP(App):
    def build(self):
        return Main()


def sendMail(FROM,TO,SUBJECT,TEXT,SERVER):
    import smtplib
    """this is some test documentation in the function"""
    message = textwrap.dedent("""\
        From: %s
        To: %s
        Subject: %s
        %s
        """ % (FROM, ", ".join(TO), SUBJECT, TEXT))
    # Send the mail
    server = smtplib.SMTP(SERVER)
    server.starttls()
    server.login('E-mail', 'Password')
    server.sendmail(FROM, TO, message)
    server.quit()


FROM = 'me'

TO = 'you'

SUBJECT = 'test'

TEXT = (Who, What, Where, When, How)

SERVER = 'smtp.gmail.com'


sendMail(FROM,TO,SUBJECT,TEXT,SERVER)



if __name__ == "__main__":
    AMAPP().run()

每当我运行此操作时，我都会遇到同样的错误：

第66行，在__init__ TEXT =（谁，什么，何地，何时，如何） NameError：名称'Who'未定义

Answer 1

您必须在创建文本输入小部件时将 id 提供给它们，以便您可以引用它们来提取文本。添加一个按钮，以便调用sendEmail方法。有关详细信息，请参阅以下示例。

实施例

main.py

import textwrap
import time
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout


FROM = 'me'
TO = 'you'
SUBJECT = 'test'
TEXT = ""
SERVER = 'smtp.gmail.com'


def sendMail(FROM, TO, SUBJECT, TEXT, SERVER):
    import smtplib
    """this is some test documentation in the function"""
    message = textwrap.dedent("""\
        From: %s
        To: %s
        Subject: %s
        %s
        """ % (FROM, ", ".join(TO), SUBJECT, TEXT))
    # Send the mail
    server = smtplib.SMTP(SERVER, 587)
    server.starttls()
    server.login('E-mail', 'Password')
    server.sendmail(FROM, TO, message)
    server.quit()


class Main(BoxLayout):

    def send_eMail(self):
        global TEXT
        print(self.ids.Who.text)
        print(self.ids.What.text)
        print(self.ids.Where.text)
        print(self.ids.When.text)
        print(self.ids.How.text)
        TEXT = (self.ids.Who.text, self.ids.What.text,
                self.ids.Where.text, self.ids.When.text, self.ids.How.text)
        sendMail(FROM, TO, SUBJECT, TEXT, SERVER)


class AMAPP(App):
    def build(self):
        return Main()


if __name__ == "__main__":
    AMAPP().run()

amapp.kv

#:kivy 1.10.0

<Main>:
    orientation: "vertical"

    GridLayout:
        cols: 2

        Label:
            text: "Who"
        TextInput:
            id: Who
            multiline: True

        Label:
            text: "What"
        TextInput:
            id: What
            multiline: True

        Label:
            text: "Where"
        TextInput:
            id: Where
            multiline: True

        Label:
            text: "When"
        TextInput:
            id: When
            multiline: True

        Label:
            text: "How"
        TextInput:
            id: How
            multiline: True

    Button:
        text: "Send Mail"
        on_release: root.send_eMail()

输出

Answer 2

你实际上与你的代码非常接近。我没有重写kv代码（这可能是更好的做法），我只是添加了按钮，修复了你的dedent调用，添加了self.Field.text引用，它运行正常。这是编辑后的代码。

import textwrap
import time
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.widget import Widget
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
from kivy.uix.button import Button  # ADDED

EMAIL="<senders email address>"   # ADDED
PASSWORD="<senders password>"   # ADDED

class Main(GridLayout):
    def __init__(self,**kwargs):
        super(Main, self).__init__(**kwargs)
        self.cols = 2

        self.add_widget(Label(text = "Who"))
        self.Who = TextInput(multiline = True)
        self.add_widget(self.Who)


        self.add_widget(Label(text = "What"))
        self.What = TextInput(multiline = True)
        self.add_widget(self.What)


        self.add_widget(Label(text = "Where"))
        self.Where = TextInput(multiline = True)
        self.add_widget(self.Where)


        self.add_widget(Label(text = "When"))
        self.When = TextInput(multiline = True)
        self.add_widget(self.When)


        self.add_widget(Label(text = "How"))
        self.How = TextInput(multiline = True)
        self.add_widget(self.How)

        self.add_widget(Button(text="Send",on_press=self.sendmail))   # ADDED

    # ADDED function callable by the button press:

    def sendmail(self,*args):

        FROM = 'me'
        TO = '<receivers email address>'
        SUBJECT = 'test'
        TEXT = '\n'.join([self.Who.text, self.What.text,
            self.Where.text, self.When.text, self.How.text])
        SERVER = 'smtp.gmail.com'
        sendMail(FROM,[TO],SUBJECT,TEXT,SERVER) # watch out for the TO argument


class AMAPP(App):
    def build(self):
        return Main()


def sendMail(FROM,TO,SUBJECT,TEXT,SERVER):
    import smtplib
    """this is some test documentation in the function"""
    message = textwrap.dedent("""\
        From: %s
        To: %s
        Subject: %s
        %s
        """) % (FROM, ", ".join(TO), SUBJECT, TEXT) # FIXED the dedent call
    # Send the mail
    server = smtplib.SMTP(SERVER)
    server.starttls()
    server.login(EMAIL,PASSWORD)
    server.sendmail(FROM, TO, message)
    server.quit()

if __name__ == "__main__":
    AMAPP().run()

警告，如果你想将数据发送到kivy GUI，它会更复杂，因为kivy必须知道数据已经改变。但这超出了这个问题的范围。

如何将输入到我的kivy GUI中的文本作为字符串用于其他地方？

2 个答案:

实施例

main.py

amapp.kv

输出