Reading which button is pressed

[barrowman]

I am trying to write a python script to help some deaf people. They have a list of sign language songs which are in m4v format.
I have a raspberry pi and a monitor which I can give them.
My intention is to provide a gui with all the song numbers on buttons so they just click the mouse on one and the video plays then returns.
I know that I can launch omxplayer with the file as a parameter.
I am trying to develop the code on my linux laptop and then transfer it to the raspberry pi along with all the songs >>> There are 152 of them <<<
That is where my problem comes from.
I have the following code ( just the relevant snippets):

def play_song(p):
    i=p; k=int(i)
    if k>0:
        if k<136:
            starter="home/norman//Downloads/bsl/sn_"
        else:
            starter="snnw_"
        if k<156:
            stp=str(k)
            if len(stp)<2:
                stp="0"+stp
                if len(stp)<3:
                    stp=" " + stp
    song2play=starter+ stp +"_r480P.m4v"
    print song2play
        
# generate the buttons
for x in range(1,9):
    for y in range(1,20):
        txt=str(q)
        j=int(txt)
        myname="button" + str(x*y)
        myname = Button(frame2,text=txt, font=TF, width=3, command = lambda: play_song(txt))
        myname.grid(row = x+2, column=y+1)
        q+=1

I have tried various ways of passing the correct song number to the function but whatever I try I get the same problem or lots of errors with other versions I have tried.
I get the same file name generated:
snnw_152_r480P. m4v
whichever button I click. Can it be done this way or do I have to create the buttons some other way

[barrowman]

It's olay, thanks got it sorted. Must have my dumb head on tonight.Just altered a lit bit of the code:

def play_song(event):
    p = event.widget['text']
    k=int(p)

and

        myname = Button(frame2,text=txt, font=TF, width=3)
        myname.bind('<Button-1>', play_song)

So now it does work.

[dwblas]

What happens when k > 155? You can also use partial to pass the number to the function

from functools import partial

        myname = Button(frame2,text=txt, font=TF, width=3, command = partial(play_song, txt))

Note that bind sends an event to the function, while "command" does not.

[barrowman]

Thanks dwblas, didn't know about partial.
I don't think k can be higher than 155 in this situation unless I am missing something?