I have a problem that I have not faced before:

It seems that the order of interpretation in my program is somehow different from what I expect. I have written a small Twitter client. It takes a few seconds for my program to actually post a tweet after I click the "GO" button (which can also be activated by hitting ENTER on the keyboard). I don't want to click multiple times within this time period thinking that I hadn't clicked it the first time. Therefore, when the button is clicked, I would like the label text to display something that tells me that the button has been clicked.

I have implemented this message by altering the label text before I send the tweet across. However, for some reason, the message does not display until the tweet has been attempted. But since I have a confirmation message after the tweet, I never get to see this message and my original problem goes unsolved.

I would really appreciate any help. Here is the relevant code:

class SimpleTextBoxForm(Form):

  def __init__(self):

    # set window properties

    self.Text = "Tweeter"
    self.Width = 235
    self.Height = 250

    #tweet away

    self.label = Label()
    self.label.Text = "Tweet Away..."
    self.label.Location = Point(10, 10)
    self.label.Height = 25
    self.label.Width = 200

    #get the tweet

    self.tweetBox = TextBox()
    self.tweetBox.Location = Point(10, 45)
    self.tweetBox.Width = 200
    self.tweetBox.Height = 60
    self.tweetBox.Multiline = True
    self.tweetBox.WordWrap = True
    self.tweetBox.MaxLength = 140;

    #ask for the login ID

    self.askLogin = Label()
    self.askLogin.Text = "Login:"
    self.askLogin.Location = Point(10, 120)
    self.askLogin.Height = 20
    self.askLogin.Width = 60

    self.login = TextBox()
    self.login.Text= ""
    self.login.Location = Point(80, 120)
    self.login.Height = 40
    self.login.Width = 100

    #ask for the password

    self.askPass = Label()
    self.askPass.Text = "Password:"
    self.askPass.Location = Point(10, 150)
    self.askPass.Height = 20
    self.askPass.Width = 60

    # display password box with character hiding

    self.password = TextBox()
    self.password.Location = Point(80, 150)
    self.password.PasswordChar = "x"
    self.password.Height = 40
    self.password.Width = 100

    #submit button

    self.button1 = Button()
    self.button1.Text = 'Tweet'
    self.button1.Location = Point(10, 180)
    self.button1.Click += self.update

    self.AcceptButton = self.button1

    #pack all the elements of the form

    self.Controls.Add(self.label)
    self.Controls.Add(self.tweetBox)
    self.Controls.Add(self.askLogin)
    self.Controls.Add(self.login)
    self.Controls.Add(self.askPass)
    self.Controls.Add(self.password)
    self.Controls.Add(self.button1)

  def update(self, sender, event):

    if not self.password.Text:
        self.label.Text = "You forgot to enter your password..."
    else:
        self.tweet(self.tweetBox.Text, self.login.Text, self.password.Text)

  def tweet(self, msg, login, password):

    self.label.Text = "Attempting Tweet..."  # this should be executed before sending the tweet is attempted. But this seems to be executed only after the try block

    try:
        success = 'Tweet successfully completed... yay!\n' + 'At: ' + time.asctime().split()[3]

        ServicePointManager.Expect100Continue = False
        Twitter().UpdateAsXML(login, password, msg)

    except:
        error = 'Unhandled Exception. Tweet unsuccessful'
        self.label.Text = error

    else:
        self.label.Text = success
        self.tweetBox.Text = ""