2,我的代码冗余量比较大,因为自己需要看懂,所以不像别的教程那样直接跟着lambda和pack,一长串的,不利于我们这种小白读。等我水平再高一些,或许我也会采用lambda,这样才够pythontic~ 后续 1.本身在做分类聚类方面的课题,结合这个规则器,我完全可以把k-means中的k参数在交互界面上输入,这样就不用每次上程序里面改了...
In this code, we create aButtonwidget and bind itscommandparameter to theupdate_labelfunction. This means that when the button is clicked, theupdate_labelfunction will be called. The function updates the text of theLabelwidget to display “Button clicked!”. In summary, events in tkinter are ...
and then convert this back into the correspondingtkintercall. Python programmers can often guess at the correct Python command by looking at the Tk documentation. This means that in order to use Tkinter, you will have to know a little bit about Tk. This document can't fulfill that role, so...
Python programmers can often guess at the correct Python command by looking at the Tk documentation. This means that in order to use Tkinter, you will have to know a little bit about Tk. This document can't fulfill that role, so the best we can do is point you to the best ...
like "g_<foo>"; in this case it means call the <foo> method on the object)Perl>$b->m_cget(-text)Helloconveniently, the "m_" part is almost always optional:Perl>$b->cget(-text)Hellocheck the current value of the command option:Perl>$b->cget(-command)::perl::CODE(0x839020)...
If you have several text widgets in your application that can be given different fonts, when one of them gains focus, it should update the font chooser with its current font. This also means that a callback from the font dialog may apply to a different text widget than the one you initi...
Python programmers can often guess at the correct Python command by looking at the Tk documentation. This means that in order to use Tkinter, you will have to know a little bit about Tk. This document can't fulfill that role, so the best we can do is point you to the best ...
Yes, Tcl 9.0 has full unicode support. That was one of the biggest issues, of course. Switching to 9.0 means no moreCESU-8. Moreover, if tkinter starts using Tk 9.0 then, as far as I can tell, that would mean that a majority of Tk users would be using Tk 9.0. ...
useTk, sync, use) _tkinter.TclError: Can't find a usable init.tcl in the following directories: C:/Python27/lib/tcl8.5 D:/PyProj/lib/tcl8.5 D:/lib/tcl8.5 D:/PyProj/library D:/library D:/tcl8.5.2/library D:/tcl8.5.2/library This probably means that Tcl wasn't installed properly...
This means that Python's Tcl/Tk libraries do not include theThreadpackage, which is needed byTkThread. On Debian/Ubuntu: apt install tcl-thread On Windows, you'll need to manually update your Tcl installation to include theThreadpackage. ...