wxPython - button

Question

Here is my code:

for i in posortowane:
    z += 20
    result = '%s: %s' % (i[0], i[1])
    wx.StaticText(panel, -1, result, (345, 125 + z), style=wx.ALIGN_CENTRE)
    btn4 = wx.Button(panel, -1, u"Remove", (485, 120 + z))
    self.Bind(wx.EVT_BUTTON, self.Rem, btn4)

There are 2 buttons one below the other. They call Rem function:

def Rem(self, i):
    print i

I would like to write 'i' from 'posortowane' when I click button. It doesn't work. I tried:

self.Bind(wx.EVT_BUTTON, self.Rem(i), btn4)

but it calls Rem function before I click a button. How can I achieve this? I am sorry for my english. Thank you for any help.

You are saying there are 2 buttons, but there is only one button created in the code. It would help the investigation if you could post more code. — Quinn, Apr 02 '16 at 00:52
I would like to add a button to every line in my program (it would be "name" and "delete" button next to it. I am trying to add settings to my program (using json). Program counts how many times in ms excell file "name" exists - name - 24, name1 - 46, name2 - 121 e.t.c. Names are strored in json file. I would like to add/remove names. I am not able to ask you what I want because of my poor english... — jundymek, Apr 03 '16 at 18:54

Lafexlos · Accepted Answer · 2016-04-04T10:59:07.610

2

When you add paranthesis, you are telling interpreter to call that function right away.
To pass parameters without calling callback immediatly, you should use lambda.

self.Bind(wx.EVT_BUTTON, lambda evt, i: self.Rem(evt,i), btn4)

edited Apr 04 '16 at 10:59

answered Apr 02 '16 at 02:10

Lafexlos

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It doesn't work... I get " >" instead 'i' – jundymek Apr 03 '16 at 18:46
I get "TypeError: () takes exactly 2 arguments (1 given)" – jundymek Apr 04 '16 at 11:07
@Luk `def Rem(self, evt, i): print i` – Lafexlos Apr 04 '16 at 11:10
It works but it prints only last i. I have: name1 'btn', name2 'btn', name3 'btn', When I press btn next to name1 I get name3... – jundymek Apr 07 '16 at 17:28
@Luk Please check these two about lambda and loop issue. http://stackoverflow.com/questions/17677649/tkinter-assign-button-command-in-loop-with-lambda && http://stackoverflow.com/questions/12423614/local-variables-in-python-nested-functions – Lafexlos Apr 07 '16 at 17:49
I tried this "command=lambda name=name: self.a(name))" but I get " >" – jundymek Apr 07 '16 at 18:30
@Luk `(..., lambda evt=evt , i=i: self.Rem(evt,i), ...)` – Lafexlos Apr 07 '16 at 18:58

wxPython - button

1 Answers1