All Questions
21
questions
1
vote
0
answers
350
views
How to get the index of a data point when the cursor clicks on it?
I have a scatter plot and I want to get the initial index of the data sample when clicked on it.
fig, ax = plt.subplots()
sc = plt.scatter(features[:, 0], features[:, 1], c=labels)
On an on-click ...
- 2,248
0
votes
2
answers
813
views
Receiving data in python callback function from dll
I am writing a program in Python that communicates with a spectrometer from Avantes. There are some proprietary dlls available whose code I don't access to, but they have some decent documentation. I ...
0
votes
1
answer
474
views
How to draw free and horizontal lines using mouse events and flags?
I try to build a code, in which I can draw lines above the image using OpenCV. In my code, I can draw lines freely, but I want draw horizontal lines, while I'm pressing the shift key. Actually, I didn'...
- 139
0
votes
2
answers
3k
views
Best practice in sending message in python telegram bot from a 3d party listener
I have a custom code that does its routine and I want to send a message to myself in Telegram if something goes wrong. In my case I use python-telegram-bot library along with apscheduler and its ...
- 21
1
vote
3
answers
3k
views
Registering a function to be called on an event in Python
I want to write a function that will be called after an event occurred but only if the user has registered it.
e.g.
#Defination
def fnBookUber(objUser):
print 'Inside fbBookUber()'
#calling
...
- 733
0
votes
0
answers
354
views
How to emit a PyQt-signal out of a cffi-callback
I am a bit stuck right now. This is more of a "how to approach this problem the right way" kind of question since I dont even know what exactly to type into google.
I got a scientific camera from ...
- 63
0
votes
0
answers
228
views
Python Matplotlib Buttons widgets and SpanSelector events
I am trying to write a program that switches between signals by clicking "previous" and "next" button, and at the same time gives the possibility to select and save part of the plot. This is what I ...
- 33
0
votes
1
answer
31
views
What's the right approach to manually adding a callback to an existing module method?
For example...
There are several methods that I'd like to treat as 'events', and fire my own functions once they've been called.
I do not manually invoke these.
As someone that's not well-versed ...
- 1
0
votes
1
answer
60
views
Python/Tkinker Combobox event not launching [duplicate]
I'm pulling my hair out and sure I'll be embarrassed by how simple my mistake is. I have created a Combobox which is supposed to launch a function each time is it selected. However nothing happens ...
- 1,043
0
votes
1
answer
128
views
wxpython: How to influence wx objects from another wx object's callback function?
I'm coding a small GUI at the moment and wanted to know how I could influence wxpython widgets' states from within another's callback function.
At the moment, I can't influence widgets from my ...
- 209
1
vote
2
answers
587
views
Gaining access to events in tkinter between objects
In this sample python/tkinter script I have 3 classes. My first class SandBox sets up a notebook with two tabs, each tab is a separate class object.
This script is not a real world script I'm ...
- 69
2
votes
2
answers
10k
views
Event callback after a Tkinter Entry widget
From the first answer here:
StackOverflow #6548837
I can call callback when the user is typing:
from Tkinter import *
def callback(sv):
print sv.get()
root = Tk()
sv = StringVar()
sv.trace("w"...
- 3,290
0
votes
1
answer
195
views
How do I pause a script in python to keep 2 sensors from being detected at same time?
I have this function in a python script that detects 2 vibrations sensors, the problem is the sensors are very sensitive so usually when one is hit they are both detected which gives me a false ...
- 751
1
vote
2
answers
3k
views
Bind callback to the object instance
I'd like to bind a class method to the object instance so that when the method is invoke as callback it can still access the object instance. I am using an event emitter to generate and fire events.
...
- 7,862
0
votes
0
answers
764
views
Python keyboard event callback
I want some of my class functions to be called when a some keyboard keys are pressed, no matter which window is active. how to do that in LINUX. What I was using until now is OpenCV and waitKey() ...
- 1,486