Jupyter Ipywidgets - How to clear cell output before re-printing the output
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Using Python 3.7 in a Jupyter notebook, the code below shows a text entry field that triggers the handle_submit function to print out some output.
In this example 40 repetitions of the input.
from ipywidgets import widgets
from IPython.display import display
text = widgets.Text()
display(text)
def handle_submit(sender):
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
Running this code displays a text box.
If you enter text in the box and press Enter, the handle_submit function is run and the "result" is printed.
This can be used multiple times, but all old output is kept. So after using the entry field a couple of times you need to scroll endlessly to get to the new result.
Is there a command to clear the cell output before printing new output from the handle_submit function? Unlike this example, the output length is not fixed, so the solution should handle differently sized outputs.
python python-3.x jupyter-notebook ipywidgets
asked Jan 3 at 20:59
576i576i
2,50011335
add a comment |
Using Python 3.7 in a Jupyter notebook, the code below shows a text entry field that triggers the handle_submit function to print out some output.
In this example 40 repetitions of the input.
from ipywidgets import widgets
from IPython.display import display
text = widgets.Text()
display(text)
def handle_submit(sender):
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
Running this code displays a text box.
If you enter text in the box and press Enter, the handle_submit function is run and the "result" is printed.
This can be used multiple times, but all old output is kept. So after using the entry field a couple of times you need to scroll endlessly to get to the new result.
Is there a command to clear the cell output before printing new output from the handle_submit function? Unlike this example, the output length is not fixed, so the solution should handle differently sized outputs.
python python-3.x jupyter-notebook ipywidgets
asked Jan 3 at 20:59
576i576i
2,50011335
add a comment |
Using Python 3.7 in a Jupyter notebook, the code below shows a text entry field that triggers the handle_submit function to print out some output.
In this example 40 repetitions of the input.
from ipywidgets import widgets
from IPython.display import display
text = widgets.Text()
display(text)
def handle_submit(sender):
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
Running this code displays a text box.
If you enter text in the box and press Enter, the handle_submit function is run and the "result" is printed.
This can be used multiple times, but all old output is kept. So after using the entry field a couple of times you need to scroll endlessly to get to the new result.
Is there a command to clear the cell output before printing new output from the handle_submit function? Unlike this example, the output length is not fixed, so the solution should handle differently sized outputs.
python python-3.x jupyter-notebook ipywidgets
asked Jan 3 at 20:59
576i576i
2,50011335
Using Python 3.7 in a Jupyter notebook, the code below shows a text entry field that triggers the handle_submit function to print out some output.
In this example 40 repetitions of the input.
from ipywidgets import widgets
from IPython.display import display
text = widgets.Text()
display(text)
def handle_submit(sender):
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
Running this code displays a text box.
If you enter text in the box and press Enter, the handle_submit function is run and the "result" is printed.
This can be used multiple times, but all old output is kept. So after using the entry field a couple of times you need to scroll endlessly to get to the new result.
Is there a command to clear the cell output before printing new output from the handle_submit function? Unlike this example, the output length is not fixed, so the solution should handle differently sized outputs.
python python-3.x jupyter-notebook ipywidgets
python python-3.x jupyter-notebook ipywidgets
asked Jan 3 at 20:59
576i576i
2,50011335
asked Jan 3 at 20:59
576i576i
2,50011335
asked Jan 3 at 20:59
576i576i
2,50011335
asked Jan 3 at 20:59
576i576i
2,50011335
asked Jan 3 at 20:59
576i576i
2,50011335
2,50011335
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
By creating an Output widget, you can print to this widget the same way as a cell output. You also have the option to call clear_output() in a context manager to, well, clear the output.
I've coded this up so the output is cleared every time new input is submitted, but there's no reason why you couldn't hook a button up to run clear_output() to do this manually.
from ipywidgets import widgets
from IPython.display import display, clear_output
text = widgets.Text()
display(text)
output = widgets.Output()
display(output)
def handle_submit(sender):
with output:
clear_output()
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
answered Jan 8 at 7:55
ac24ac24
705110
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
By creating an Output widget, you can print to this widget the same way as a cell output. You also have the option to call clear_output() in a context manager to, well, clear the output.
I've coded this up so the output is cleared every time new input is submitted, but there's no reason why you couldn't hook a button up to run clear_output() to do this manually.
from ipywidgets import widgets
from IPython.display import display, clear_output
text = widgets.Text()
display(text)
output = widgets.Output()
display(output)
def handle_submit(sender):
with output:
clear_output()
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
answered Jan 8 at 7:55
ac24ac24
705110
add a comment |
By creating an Output widget, you can print to this widget the same way as a cell output. You also have the option to call clear_output() in a context manager to, well, clear the output.
I've coded this up so the output is cleared every time new input is submitted, but there's no reason why you couldn't hook a button up to run clear_output() to do this manually.
from ipywidgets import widgets
from IPython.display import display, clear_output
text = widgets.Text()
display(text)
output = widgets.Output()
display(output)
def handle_submit(sender):
with output:
clear_output()
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
answered Jan 8 at 7:55
ac24ac24
705110
add a comment |
By creating an Output widget, you can print to this widget the same way as a cell output. You also have the option to call clear_output() in a context manager to, well, clear the output.
I've coded this up so the output is cleared every time new input is submitted, but there's no reason why you couldn't hook a button up to run clear_output() to do this manually.
from ipywidgets import widgets
from IPython.display import display, clear_output
text = widgets.Text()
display(text)
output = widgets.Output()
display(output)
def handle_submit(sender):
with output:
clear_output()
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
answered Jan 8 at 7:55
ac24ac24
705110
By creating an Output widget, you can print to this widget the same way as a cell output. You also have the option to call clear_output() in a context manager to, well, clear the output.
I've coded this up so the output is cleared every time new input is submitted, but there's no reason why you couldn't hook a button up to run clear_output() to do this manually.
from ipywidgets import widgets
from IPython.display import display, clear_output
text = widgets.Text()
display(text)
output = widgets.Output()
display(output)
def handle_submit(sender):
with output:
clear_output()
print('n'.join([text.value] * 40 ))
text.on_submit(handle_submit)
answered Jan 8 at 7:55
ac24ac24
705110
answered Jan 8 at 7:55
ac24ac24
705110
answered Jan 8 at 7:55
ac24ac24
705110
answered Jan 8 at 7:55
ac24ac24
705110
705110
add a comment |
add a comment |
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