Why does the interpretted order seem different from what I expect?
- by inspectorG4dget
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 = ""
