How to Get Value Out from the Tkinter Slider (Scale)?

2024/11/16 17:59:43

So, here is the code I have, and as I run it, the value of the slider bar appears above the slider, I wonder is there a way to get that value out? Maybe let a=that value. ;)

from Tkinter import *control = Tk()
control.geometry("350x200+100+50")scale = Scale(control,orient=HORIZONTAL,length=300,width=20,sliderlength=10,from_=0,to=1000,tickinterval=100)
scale.pack()control.mainloop()
Answer

To get the value as it is modified, associate a function with the parameter command. This function will receive the current value, so you just work with it. Also note that in your code you have cline3 = Scale(...).pack(). cline3 is always None in this case, since that is what pack() returns.

import Tkinterdef print_value(val):print valroot = Tkinter.Tk()scale = Tkinter.Scale(orient='horizontal', from_=0, to=128, command=print_value)
scale.pack()root.mainloop()
https://en.xdnf.cn/q/71314.html

Related Q&A

Python cassandra-driver OperationTimeOut on every query in Celery task

I have a problem with every insert query (little query) which is executed in celery tasks asynchronously. In sync mode when i do insert all done great, but when it executed in apply_async() i get this:…

Function which returns the least-squares solution to a linear matrix equation

I have been trying to rewrite the code from Python to Swift but Im stuck on the function which should return the least-squares solution to a linear matrix equation. Does anyone know a library written i…

Divide .csv file into chunks with Python

I have a large .csv file that is well over 300 gb. I would like to chunk it into smaller files of 100,000,000 rows each (each row has approximately 55-60 bytes).I wrote the following code:import panda…

Why cant I use operator.itemgetter in a multiprocessing.Pool?

The following program:import multiprocessing,operator f = operator.itemgetter(0) # def f(*a): return operator.itemgetter(0)(*a) if __name__ == __main__:multiprocessing.Pool(1).map(f, ["ab"])f…

Writing a compiler for a DSL in python

I am writing a game in python and have decided to create a DSL for the map data files. I know I could write my own parser with regex, but I am wondering if there are existing python tools which can do …

How to setup Celery to talk ssl to Azure Redis Instance

Using the great answer to "How to configure celery-redis in django project on microsoft azure?", I can configure Celery to use Azure Redis Cache using the non-ssl port, 6379, using the follo…

Cant save data from yfinance into a CSV file

I found library that allows me to get data from yahoo finance very efficiently. Its a wonderful library.The problem is, I cant save the data into a csv file.Ive tried converting the data to a Panda Da…

silhouette coefficient in python with sklearn

Im having trouble computing the silhouette coefficient in python with sklearn. Here is my code :from sklearn import datasets from sklearn.metrics import * iris = datasets.load_iris() X = pd.DataFrame(i…

Force dask to_parquet to write single file

When using dask.to_parquet(df, filename) a subfolder filename is created and several files are written to that folder, whereas pandas.to_parquet(df, filename) writes exactly one file. Can I use dasks t…

Unable to get python embedded to work with zipd library

Im trying to embed python, and provide the dll and a zip of the python libraries and not use any installed python. That is, if a user doesnt have python, I want my code to work using the provided dll/…