Mailman 3 January 2018 - Tkinter-discuss

Contribution to Tkinter's Documentation
by adil gourinda Feb. 5, 2018

Feb. 5, 2018

Hi Because the official Tkinter's documentation is not complete I have to learn Tcl/Tk language,learning a new language and translate its syntax take a great efforts. So to make things easier for Python's users ,I made this project "Tcl/Tk--|direct translation|-->Tkinter"(https://wiki.tcl.tk/49306) and as I said in my project's description: "My objective is to make a direct translation from Tcl/Tk to Tkinter...". The work is not yet complete but I want the Python's community to benefit from it and participate in its developpement(I can share with you the translation's rules, they are my inventions :-) ) Honestly I feel comfort in Tcl/Tk wiki except some limitations: -to change the name of a page you can't do it directly you have to create new page with new title -problem in indented text And it was also an opportunity to discover "Tcl" language(It is not bad). Thanks for your attention. Gourinda Adil

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Simulating keystrokes in a tkinter unit test
by alan moore Feb. 2, 2018

Feb. 2, 2018

Hi all, I'm attempting to write a unit test for a custom widget using Python unittest. I'm trying to simulate actual keystrokes in my unit test. Following the example from the tkinter test suite, I created a test that is approximately this: from tkinter import Entry as MyWidget from tkinter.test.support import AbstractTkTest import unittest class TestMyWidget(AbstractTkTest, unittest.TestCase): def setUp(self): super().setUp() self.mywidget = self.create() self.mywidget.wait_visibility() def tearDown(self): super().tearDown() self.mywidget.destroy() def create(self): mw = MyWidget(self.root) mw.pack() return mw def _keystroke(self, char): self.mywidget.event_generate('<KeyPress-{}>'.format(char)) self.mywidget.event_generate('<KeyRelease-{}>'.format(char)) self.mywidget.update_idletasks() def test_key_entry(self): self._keystroke('a') self.assertEqual(self.mywidget.get(), 'a') if __name__ == '__main__': unittest.main() This doesn't work, though. The keypresses don't register and create any text in the entry. I can add text using event_generate inside a mainloop, but without mainloop it doesn't seem to work. Interestingly, I can use the same method to generate mouse events and they seem to be recognized. Is there a way to make keypresses work without mainloop?

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Draw a table in Python 3.1
by Lemar Hurtado Jan. 18, 2018

Jan. 18, 2018

I ran your code, and it works great, I have a similar one that works too, but I just need it to not only keep visible the header (first row) when scrolling Y, but to keep the first column visible when scrolling X. From my point of view is near to imposible cause the only way would be to (hypothetically) link the xview of the data and first column canvases to the self.scrollX as well as the y view of the data and the first row canvases to self.scrollY Greetings from Havana Enviado desde mi BLU Android Smartphone

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Hi, could you help me?, please
by Lemar Hurtado Jan. 18, 2018

Jan. 18, 2018

I ran your code, and it works great, I have a similar one that works too, but I just need it to not only keep visible the header (first row) when scrolling Y, but to keep the first column visible when scrolling X. From my point of view is near to imposible cause the only way would be to (hypothetically) link the xview of the data and first column canvases to the self.scrollX as well as the y view of the data and the first row canvases to self.scrollY Greetings from Havana Enviado desde mi BLU Android Smartphone

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TKinter and Python asyncio
by c.buhtz＠posteo.jp Jan. 5, 2018

Jan. 5, 2018

Hello, is it a bad idea to combine tkinter and asyncio package in Python3.5? Or is it even possible? I am also not sure if asynchronus programming is the solution of my problem: I try to create a Newsfeed-Reader (RSS & Atom). So I when the application refresh all feeds it will cause downloading e.g. 100 separate files/feeds. And I am not absolutly sure about the differences between multihtreading and asynchrone programming.

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Mapping Tcl's arguments to Python's arguments
by adil gourinda Jan. 4, 2018

Jan. 4, 2018

Please can someone illuminate the differences between Tcl's arguments and Python's arguments? After reading a little about tcl/Tk I found that the arguments are written in the forms: 1) -option (the option's name alone is an argument) 2) -option value (with description of value's type) 3) value (only the value's description exists, no "-option") 4) ?expression? Python opponents: 1) option=Boolean_Value 2) "*,option=value", keyword-only argument (but value is the default argument, not its nature) 3) is positional argument and the value's name is passed to option's name. 4) can you explain the difference between function(option1=value [,option2]) *2)+3) are grouped in positional-keyword argument

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why from _tkinter import * ? why the underscore
by R Jan. 1, 2018

Jan. 1, 2018

why from _tkinter import * ? why the underscore in _tkinter ?

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