# Force redraw() / redraw with callback
**URL:** https://discourse.processing.org/t/force-redraw-redraw-with-callback/27246
**Category:** p5py
**Created:** [January 20, 2021, 7:10pm UTC](https://discourse.processing.org/t/force-redraw-redraw-with-callback/27246 "2021-01-20T19:10:21Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@odotdotdot](https://discourse.processing.org/u/odotdotdot)
#### Post date: [January 20, 2021, 7:10pm UTC](https://discourse.processing.org/t/force-redraw-redraw-with-callback/27246/1 "2021-01-20T19:10:21Z")
I have a p5py application that requires getting data from the internet on user input. I’m running the sketch with no\_loop() in the setup as animation is only required on user input.
Fetching and processing the data can take a second, but the user input is available immediately and I would like to draw it to the screen right away, then do the fetching and processing.
The following code is inside of key\_pressed(), which keeps track of user input in the object user\_input
```auto
if key == 'ENTER':
# assign the global variable text_to_display to whatever the user typed
text_to_display = user_input
# call draw to render that text to screen
redraw()
# get and process data from the input
get_and_process(user_input)
```
I would expect redraw to execute before get\_and\_process is called, but that’s not happening. I see the redrawn results only after get\_and\_process is complete.
Maybe something analogous to p5’s request animation frame step is happening. Is there a way for me to force redraw to execute before the program moves on? Or to call get\_and\_process as a callback on redraw()?
---
### Author:  [@tabreturn](https://discourse.processing.org/u/tabreturn)
#### Post date: [January 20, 2021, 8:46pm UTC](https://discourse.processing.org/t/force-redraw-redraw-with-callback/27246/2 "2021-01-20T20:46:33Z")
Disclaimer: I know nothing about async techniques and threads in Python.
It seems that the entire `key_pressed()` block must complete before the next frame can redraw. Maybe you could use a thread? Something like –
```auto
from p5 import *
import threading
def setup():
size(500, 500)
no_loop()
def draw():
background(0)
text(str(frame_count), 10, 10)
def key_pressed(e):
worker = threading.Thread(target=print_frame_count)
worker.start()
redraw()
def print_frame_count():
time.sleep(2)
print(frame_count)
run()
```
The frame number is drawn in the display window two seconds before it appears in the console.
---
### Author:  [@odotdotdot](https://discourse.processing.org/u/odotdotdot)
#### Post date: [January 20, 2021, 9:12pm UTC](https://discourse.processing.org/t/force-redraw-redraw-with-callback/27246/3 "2021-01-20T21:12:32Z")
That did the trick. Thanks a bunch!