473,585 Members | 2,739 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Passing an event handler through a list

Hi, I'm now trying to separate my wxPython GUI-building code into different
files,
and ran into a bump:

In main.py, I add an event handler to a list:
----------------------
# -- add the event handler to list
lstEvtHandler.a ppend(self.OnNo deChanged)

# -- call the function in the other py file
GUI_Function.Ad dItemsToSizer(s elf, self.leftSizer, \
self.MyLeftPane l, lstEvtHandler )
In GUI_Function.py ,
---------------------
from wxPython.wx import *

def AddItemsToSizer (self, sizer, panel, *evtHandlerList ):

# .. create a tree, put a newId into treeID,

EVT_TREE_SEL_CH ANGED(self.tree , treeID, evtHandlerList[0])

What I get here is:
TypeError: Expected callable object or None.
Can you pass a handler in this way?


Jul 18 '05 #1
2 1566
Am Sonntag, 24. Oktober 2004 18:20 schrieb StvB:
In main.py, I add an event handler to a list:
[snip]

In GUI_Function.py ,
---------------------
from wxPython.wx import *
def AddItemsToSizer (self, sizer, panel, evtHandlerList ): [snip]


Try this, and read up on parameter passing (and also read up on what
*evtHandlerList means...

Heiko.
Jul 18 '05 #2
Thanks, I just thought that asterisk had to come in somewhere in the code.
Jul 18 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

7
49568
by: Pavils Jurjans | last post by:
Hallo, I have been programming for restricted environments where Internet Explorer is a standard, so I haven't stumbled upon this problem until now, when I need to write a DOM-compatible code. The question is about best practices for passing parameters to an event function. I have, say, the following HTML:
2
1902
by: Nick | last post by:
Is there a way that if I host my remoted object in IIS (not having to mess with encryption & authentication via a custom sink) that the server can raise events and the clients can detect them? If so what would be the best way to go about having the client handle an event that is fired from the server...I am currently using SingleCall and not...
6
1869
by: vbMark | last post by:
If I have a control, for example a CheckedListBox, how do I add and event to code, for example that a box has been checked by the user? Thanks
13
3492
by: Charles Law | last post by:
Mr "yEaH rIgHt" posted the following link about a week ago in answer to my question about removing event handlers. > http://www.vbinfozine.com/t_bindevt.shtml Following on from that post, the following issues still exist. The article shows how to find methods on a receiver that match the pattern OnXXXX given the sender. It loops through...
3
1956
by: Beth | last post by:
in the following: this.ExitButton.Click += new System.EventHandler(this.ExitButton_Click); if I saw an equation, such as y +=x; then y = y+x. But what is the meaning in the event handler. I realize it is adding an event handler for the click event of the exit button, but how do i reason through the 2 step process inferred by the +=...
5
1887
by: Richard Grant | last post by:
Hi, I need to "save" in a variable the event handler sub of a control's event, then perform some process, and finally "restore" the originally saved event handler. Example in pseudo-code: 1) Save cmbMyCombo's event handler for SelectedIndexChange event. 2) Assign a temporary event handler sub to cmbMyCombo's for its SelectedIndexChange...
5
1825
by: glenn | last post by:
Hi folks, The problem I have is that a query string works if hard-coded but if I pass a variable to it, it does not work as shown here. This works: querystring="SELECT * FROM USERS WHERE CNAME = 'MICROSOFT'" This does not work: Dim var as string
4
2373
by: simon | last post by:
hi, I would like to separate my javascript completely from my xhtml. in the end there should be only <script type="text/javascript" src="javalib.js"></script> in the head-tag to my javascript. Because I want to use some ajax-requests and other javascript-functions on my xhtml, I need to dynamically add event handlers to any possible...
10
13006
by: Janus | last post by:
Hi, Is there a way to pass arguments to the callback function used inside an addEventListener? I see that I can only list the name of the callback function. For eg, I use this: var boldLink=document.getElementById('cmtbold');
0
7832
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...
0
8192
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. ...
0
8332
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
0
8204
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
0
6592
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...
1
5705
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes...
0
5382
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert...
0
3828
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in...
1
1442
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.